{"id":225650,"date":"2025-07-10T19:15:00","date_gmt":"2025-07-10T17:15:00","guid":{"rendered":"https:\/\/flawlesshair.com\/?p=225650"},"modified":"2025-07-10T00:47:10","modified_gmt":"2025-07-09T22:47:10","slug":"hair-straightening-vs-smoothing-differences","status":"publish","type":"post","link":"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/","title":{"rendered":"Hair Straightening Vs. Smoothing: Differences &#038; Side Effects"},"content":{"rendered":"<style>img#mv-trellis-img-1::before{padding-top:100%; }img#mv-trellis-img-1{display:block;}img#mv-trellis-img-2::before{padding-top:100%; }img#mv-trellis-img-2{display:block;}img#mv-trellis-img-3::before{padding-top:100%; }img#mv-trellis-img-3{display:block;}img#mv-trellis-img-4::before{padding-top:100%; }img#mv-trellis-img-4{display:block;}img#mv-trellis-img-5::before{padding-top:100%; }img#mv-trellis-img-5{display:block;}img#mv-trellis-img-6::before{padding-top:100%; }img#mv-trellis-img-6{display:block;}img#mv-trellis-img-7::before{padding-top:100%; }img#mv-trellis-img-7{display:block;}img#mv-trellis-img-8::before{padding-top:100%; }img#mv-trellis-img-8{display:block;}img#mv-trellis-img-9::before{padding-top:100%; }img#mv-trellis-img-9{display:block;}img#mv-trellis-img-10::before{padding-top:100%; }img#mv-trellis-img-10{display:block;}img#mv-trellis-img-11::before{padding-top:100%; }img#mv-trellis-img-11{display:block;}img#mv-trellis-img-12::before{padding-top:100%; }img#mv-trellis-img-12{display:block;}img#mv-trellis-img-13::before{padding-top:100%; }img#mv-trellis-img-13{display:block;}img#mv-trellis-img-14::before{padding-top:100%; }img#mv-trellis-img-14{display:block;}img#mv-trellis-img-15::before{padding-top:100%; }img#mv-trellis-img-15{display:block;}<\/style>\n<p>Confused about hair straightening and smoothing treatments? You&rsquo;re not alone! These popular salon procedures both promise sleeker locks, but work in completely different ways. <\/p>\n\n\n\n<p>Understanding their differences, benefits, and potential risks can help you choose the right option for your hair type and desired look.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Chemical Composition Differences<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Hair-Straightening-Vs.-Smoothing-Differences-Side-Effects-1.jpg\" alt=\"Chemical Composition Differences\"><\/noscript><img decoding=\"async\" src=\"data:image\/svg+xml,%3Csvg%20xmlns='http:\/\/www.w3.org\/2000\/svg'%20viewBox='0%200%20300%20300'%3E%3Crect%20width='300'%20height='300'%20style='fill:%23e3e3e3'\/%3E%3C\/svg%3E\" alt=\"Chemical Composition Differences\" width=\"300\" height=\"300\" id=\"mv-trellis-img-1\" loading=\"eager\" data-src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Hair-Straightening-Vs.-Smoothing-Differences-Side-Effects-1.jpg\" class=\"eager-load\" data-svg=\"1\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Hair-Straightening-Vs.-Smoothing-Differences-Side-Effects-1.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.johnfrieda.com\/en-uk\/blog\/hairstyles\/how-to-get-straight-hair\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; John Frieda Hair Care &ndash; Frizz, Color &amp; Shampoo<\/a><\/figcaption><\/figure>\n\n\n\n<p>Straightening typically uses strong chemicals like sodium hydroxide or ammonium thioglycolate. Smoothing treatments contain gentler ingredients like keratin, glycolic acid, and natural oils that nourish while reducing frizz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. Process Duration Varies<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Chemical-Composition-Differences.jpg\" alt=\"Process Duration Varies\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Chemical-Composition-Differences.jpg\" alt=\"Process Duration Varies\" width=\"300\" height=\"300\" id=\"mv-trellis-img-2\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Chemical-Composition-Differences.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.indiquehair.com\/products\/pure-straight?srsltid=AfmBOootW2LZtX9UmBLM4t4QvCJBG-TYhqW7Vmp2t5CxbnKoZYalKOUp\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Indique Hair<\/a><\/figcaption><\/figure>\n\n\n\n<p>Ready for a time commitment? Straightening procedures often take 3-4 hours from start to finish. Smoothing treatments wrap up quicker, typically requiring only 1-2 hours in the salon chair.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. Longevity of Results<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Process-Duration-Varies.jpg\" alt=\"Longevity of Results\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Process-Duration-Varies.jpg\" alt=\"Longevity of Results\" width=\"300\" height=\"300\" id=\"mv-trellis-img-3\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Process-Duration-Varies.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/yummyextensions.com\/products\/raw-cambodian-straight-where-to-buy-best-raw-cambodian-hair?srsltid=AfmBOooFgj1qasi4fILRgyZgdweXgV-omdmDMBR0iuP281oXUfHQ_ugZ\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; Yummy Hair Extensions<\/a><\/figcaption><\/figure>\n\n\n\n<p>Straightening results stick around until new hair grows in, lasting 6-8 months. Smoothing effects gradually fade away, requiring touch-ups every 2-3 months as the treatment washes out over time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. Impact on Hair Structure<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Longevity-of-Results.jpg\" alt=\"Impact on Hair Structure\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Longevity-of-Results.jpg\" alt=\"Impact on Hair Structure\" width=\"300\" height=\"300\" id=\"mv-trellis-img-4\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Longevity-of-Results.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.gkhair.com\/blogs\/all-blog-posts\/straight-talk-mastering-the-art-of-sleek-straight-hair?srsltid=AfmBOoqJzSoUh9dUH7XetkmdlJj6tXoTa-brM5NSMkLCHIMyRjn-AxOu\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; GK Hair<\/a><\/figcaption><\/figure>\n\n\n\n<p>Straightening permanently alters your hair&rsquo;s internal structure by breaking natural bonds. Smoothing merely coats hair shafts with proteins that temporarily fill gaps and seal the cuticle without changing its core structure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. Heat Damage Potential<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Impact-on-Hair-Structure.jpg\" alt=\"Heat Damage Potential\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Impact-on-Hair-Structure.jpg\" alt=\"Heat Damage Potential\" width=\"300\" height=\"300\" id=\"mv-trellis-img-5\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Impact-on-Hair-Structure.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.hadviser.com\/heat-damaged-hair\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">\u00a9 Hair Adviser<\/a><\/figcaption><\/figure>\n\n\n\n<p>Beware of the burn! Straightening requires extremely high temperatures that can weaken strands over time. Smoothing treatments use moderate heat that poses less risk of thermal damage to your precious locks.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6. Maintenance Requirements<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Heat-Damage-Potential.jpg\" alt=\"Maintenance Requirements\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Heat-Damage-Potential.jpg\" alt=\"Maintenance Requirements\" width=\"300\" height=\"300\" id=\"mv-trellis-img-6\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Heat-Damage-Potential.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.indiquehair.com\/products\/sea-zen-straight?srsltid=AfmBOorvzYjasDtAUxyPzrOJLpR88o74KM32CmasdChMEZrhgCbom_nA\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Indique Hair<\/a><\/figcaption><\/figure>\n\n\n\n<p>Straightened hair demands special sulfate-free products and minimal washing to preserve results. Smoothed hair enjoys easier maintenance with regular shampoos allowed and fewer product restrictions overall.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7. Styling Flexibility Afterwards<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Maintenance-Requirements.jpg\" alt=\"Styling Flexibility Afterwards\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Maintenance-Requirements.jpg\" alt=\"Styling Flexibility Afterwards\" width=\"300\" height=\"300\" id=\"mv-trellis-img-7\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Maintenance-Requirements.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.teenvogue.com\/story\/top-ten-flat-iron-mistakes\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; Teen Vogue<\/a><\/figcaption><\/figure>\n\n\n\n<p>Straightening locks you into one look &ndash; permanently straight strands with little versatility. Smoothing treatments tame frizz while maintaining your natural wave pattern, allowing curling and varied styling options.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">8. Scalp Irritation Risks<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Styling-Flexibility-Afterwards.jpg\" alt=\"Scalp Irritation Risks\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Styling-Flexibility-Afterwards.jpg\" alt=\"Scalp Irritation Risks\" width=\"300\" height=\"300\" id=\"mv-trellis-img-8\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Styling-Flexibility-Afterwards.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/renu.doctor\/blog\/the-ultimate-guide-to-treating-an-itchy-scalp\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; Dr.Renu | Dermatologist<\/a><\/figcaption><\/figure>\n\n\n\n<p>Ouch! Straightening chemicals can cause burning sensations, redness, and even chemical burns on sensitive scalps. Smoothing formulas typically produce milder reactions, though some people still experience minor itching or irritation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">9. Price Point Comparison<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Scalp-Irritation-Risks.jpg\" alt=\"Price Point Comparison\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Scalp-Irritation-Risks.jpg\" alt=\"Price Point Comparison\" width=\"300\" height=\"300\" id=\"mv-trellis-img-9\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Scalp-Irritation-Risks.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.styleseat.com\/blog\/keratin-treatment-cost\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">\u00a9 StyleSeat<\/a><\/figcaption><\/figure>\n\n\n\n<p>Budget matters! Straightening commands premium prices ranging from $300-700 depending on hair length and salon location. Smoothing treatments offer more affordable options, typically costing between $150-400 for the same length.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">10. Formaldehyde Exposure Concerns<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Price-Point-Comparison.jpg\" alt=\"Formaldehyde Exposure Concerns\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Price-Point-Comparison.jpg\" alt=\"Formaldehyde Exposure Concerns\" width=\"300\" height=\"300\" id=\"mv-trellis-img-10\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Price-Point-Comparison.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.healthline.com\/health\/what-are-the-side-effects-of-a-keratin-treatment\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; Healthline<\/a><\/figcaption><\/figure>\n\n\n\n<p>Health alert! Many straightening treatments release formaldehyde gas when heated, a known carcinogen. Most modern smoothing options are formaldehyde-free, using alternative technologies to achieve similar results without harmful emissions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">11. Hair Texture Transformation<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Formaldehyde-Exposure-Concerns.webp\" alt=\"Hair Texture Transformation\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Formaldehyde-Exposure-Concerns.webp\" alt=\"Hair Texture Transformation\" width=\"300\" height=\"300\" id=\"mv-trellis-img-11\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Formaldehyde-Exposure-Concerns.webp\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.stylecraze.com\/articles\/hair-smoothing-vs-hair-straightening\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">\u00a9 StyleCraze<\/a><\/figcaption><\/figure>\n\n\n\n<p>Straightening creates glass-like, poker-straight results regardless of your starting texture. Smoothing enhances your natural pattern by removing frizz while preserving some wave or curl, resulting in a more natural appearance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">12. Pregnancy Safety Factors<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Hair-Texture-Transformation.jpg\" alt=\"Pregnancy Safety Factors\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Hair-Texture-Transformation.jpg\" alt=\"Pregnancy Safety Factors\" width=\"300\" height=\"300\" id=\"mv-trellis-img-12\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Hair-Texture-Transformation.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/americanpregnancy.org\/healthy-pregnancy\/is-it-safe\/hair-treatments-during-pregnancy\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; American Pregnancy Association<\/a><\/figcaption><\/figure>\n\n\n\n<p>Expecting? Most doctors advise against chemical straightening during pregnancy due to harsh ingredients and fumes. Many smoothing treatments offer pregnancy-safe alternatives with gentler formulations approved for use during this special time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">13. Swimming and Sun Exposure<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Pregnancy-Safety-Factors.jpg\" alt=\"Swimming and Sun Exposure\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Pregnancy-Safety-Factors.jpg\" alt=\"Swimming and Sun Exposure\" width=\"300\" height=\"300\" id=\"mv-trellis-img-13\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Pregnancy-Safety-Factors.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/essentiallynatural.co.za\/blogs\/the-essentially-natural-blog\/ultimate-guide-how-to-protect-your-hair-when-swimming?srsltid=AfmBOorwLOewSJlfsZmtdORo3BQTAS8OP4snUQwCWwrrdOnbTZ76rZXM\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; Essentially Natural<\/a><\/figcaption><\/figure>\n\n\n\n<p>Beach lovers beware! Chlorine and saltwater rapidly deteriorate straightening results, causing frizz return. Smoothing treatments better withstand pool chemicals and sun exposure, making them superior for summer months and vacations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">14. Long-Term Hair Health Impact<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Swimming-and-Sun-Exposure.webp\" alt=\"Long-Term Hair Health Impact\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Swimming-and-Sun-Exposure.webp\" alt=\"Long-Term Hair Health Impact\" width=\"300\" height=\"300\" id=\"mv-trellis-img-14\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Swimming-and-Sun-Exposure.webp\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.drmalaymehta.com\/blog\/does-weight-loss-cause-hair-loss\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; Dr Malay Mehta<\/a><\/figcaption><\/figure>\n\n\n\n<p>Regular straightening leads to protein loss, breakage, and thinning over years of use. Smoothing can actually improve hair condition over time by adding protective proteins and moisture that strengthen strands with each application.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">15. Growing-Out Process<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><div style=\"position: relative;\"><noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Long-Term-Hair-Health-Impact.jpg\" alt=\"Growing-Out Process\"><\/noscript><img decoding=\"async\" src=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Long-Term-Hair-Health-Impact.jpg\" alt=\"Growing-Out Process\" width=\"300\" height=\"300\" id=\"mv-trellis-img-15\" loading=\"lazy\" class=\"lazyload\" data-trellis-processed=\"1\"><div style=\"position: absolute; top: 0.5rem; right: 0.75rem;\"> <a href=\"https:\/\/www.pinterest.com\/pin\/create\/button\/\" data-pin-do=\"buttonPin\" data-pin-tall=\"true\" data-pin-url=\"https:\/\/flawlesshair.com\/es\/hair-straightening-vs-smoothing-differences\/\" data-pin-media=\"https:\/\/flawlesshair.com\/wp-content\/uploads\/2025\/07\/Long-Term-Hair-Health-Impact.jpg\" data-pin-description=\"Hair Straightening Vs. Smoothing: Differences &amp; Side Effects\" rel=\"nofollow noopener\" target=\"_blank\"> <\/a><\/div><\/div><figcaption class=\"wp-element-caption\">\n                <a href=\"https:\/\/www.kaya.in\/blog\/keratin-vs-smoothing-treatments?srsltid=AfmBOoqPgtEU5t0RmKWBvJET_3RgsRcVWDWylomr7Of9lL9K2k-oJFNX\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">&copy; Kaya Skin Clinic<\/a><\/figcaption><\/figure>\n\n\n\n<p>Growing out straightened hair creates an obvious demarcation line between treated and natural sections. Smoothing treatments fade gradually, creating a subtle transition without the awkward &ldquo;two textures&rdquo; phase during regrowth.<\/p>","protected":false},"excerpt":{"rendered":"<p>Confused about hair straightening and smoothing treatments? You&rsquo;re not alone! These popular salon procedures both promise sleeker locks, but work in completely different ways. Understanding &hellip;<\/p>","protected":false},"author":30,"featured_media":225649,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"syndication_tool_enabled":true,"syndication_tool_title":"","syndication_tool_excerpt":"","syndication_tool_featured_image":0,"syndication_tool_publish_date":"","syndication_tool_schema_types":["gallery"],"syndication_tool_backlink_enable":false,"syndication_tool_ai_disclosure_enable":false,"disable-in-feed":false,"article-schema-type":"","disable-critical-css":false,"footnotes":""},"categories":[29],"tags":[],"class_list":["post-225650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trends"],"_links":{"self":[{"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/posts\/225650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/users\/30"}],"replies":[{"embeddable":true,"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/comments?post=225650"}],"version-history":[{"count":0,"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/posts\/225650\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/media\/225649"}],"wp:attachment":[{"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/media?parent=225650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/categories?post=225650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flawlesshair.com\/es\/wp-json\/wp\/v2\/tags?post=225650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}