{"id":8885,"date":"2025-03-11T13:48:48","date_gmt":"2025-03-11T06:48:48","guid":{"rendered":"https:\/\/drnguyengiap.com\/?p=8885"},"modified":"2025-12-04T16:20:50","modified_gmt":"2025-12-04T09:20:50","slug":"tretinoin-la-gi","status":"publish","type":"post","link":"https:\/\/drnguyengiap.com\/en\/what-is-tretinoin\/","title":{"rendered":"What is Tretinoin?"},"content":{"rendered":"<p><strong>What is Tretinoin? How to use it effectively?<\/strong><\/p>\n<p>In the world of skin care, there is one ingredient that has been researched and proven for decades to be powerful in treating acne, anti-aging, and improving skin texture. <b>Tretinoin<\/b>. Known as a derivative of <a href=\"https:\/\/drnguyengiap.com\/en\/what-is-vitamin-a\/\">vitamin A<\/a>, Tretinoin belongs to the group <b>Retinoid<\/b> and the ingredients prescribe powerful in the treatment of dermatology.<\/p>\n<p>Introduced in the 1960s, Tretinoin was initially developed to treat acne. However, over time, experts realized that in addition to its ability to treat acne, this compound also has the effect of reducing dark spots and improving skin tone. <a href=\"https:\/\/drnguyengiap.com\/en\/tre-hoa-da-mat\/\">elasticity and rejuvenate the skin<\/a>.<\/p>\n<p>Thanks to its outstanding uses, Tretinoin has become one of the most widely used active ingredients in intensive skin care treatments.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8895\" title=\"tretinoin-la-gi\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/tretinoin-la-gi.webp\" alt=\"tretinoin la gi\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/tretinoin-la-gi.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/tretinoin-la-gi-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/tretinoin-la-gi-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/tretinoin-la-gi-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/tretinoin-la-gi-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Main Contents <\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Clinic Overview<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/drnguyengiap.com\/en\/what-is-tretinoin\/#Co_che_hoat_dong_cua_Tretinoin\" title=\"Mechanism of action of Tretinoin\">Mechanism of action of Tretinoin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/drnguyengiap.com\/en\/what-is-tretinoin\/#Cong_dung_cua_Tretinoin\" title=\"Benefits of Tretinoin\">Benefits of Tretinoin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/drnguyengiap.com\/en\/what-is-tretinoin\/#So_sanh_Tretinoin_va_Retinol\" title=\"Compare Tretinoin and Retinol\">Compare Tretinoin and Retinol<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/drnguyengiap.com\/en\/what-is-tretinoin\/#Cac_dang_bao_che_cua_Tretinoin\" title=\"Dosage forms of Tretinoin\">Dosage forms of Tretinoin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/drnguyengiap.com\/en\/what-is-tretinoin\/#Huong_dan_su_dung_Tretinoin_dung_cach\" title=\"Instructions for proper use of Tretinoin\">Instructions for proper use of Tretinoin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/drnguyengiap.com\/en\/what-is-tretinoin\/#Tom_lai\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Co_che_hoat_dong_cua_Tretinoin\"><\/span><b>Mechanism of action of Tretinoin<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Unlike conventional skin care products that only act on the surface, Tretinoin penetrates deep into the skin and works at the cellular level. This ingredient promotes faster skin regeneration, helps remove dead cells, stimulates <a href=\"https:\/\/drnguyengiap.com\/en\/how-to-get-collagen-in-your-face\/\">the production of collagen<\/a> and elastin.<\/p>\n<p>As a result, it helps to fade dark spots, reduce wrinkles, and improve overall skin texture. One of the most important mechanisms of Tretinoin is to control oil and prevent acne.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8896\" title=\"cham-soc-da-bang-tretinoin-dang-gel\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/cham-soc-da-bang-tretinoin-dang-gel.webp\" alt=\"cham soc da bang tretinoin dang gel\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/cham-soc-da-bang-tretinoin-dang-gel.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/cham-soc-da-bang-tretinoin-dang-gel-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/cham-soc-da-bang-tretinoin-dang-gel-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/cham-soc-da-bang-tretinoin-dang-gel-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/cham-soc-da-bang-tretinoin-dang-gel-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>By unclogging pores, reducing sebum build-up and regulating keratinization, Tretinoin helps prevent the formation of blackheads, acne and other skin problems of <a href=\"https:\/\/drnguyengiap.com\/en\/what-is-oily-skin-type\/\">skin related to excess oil<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cong_dung_cua_Tretinoin\"><\/span><b>Benefits of Tretinoin<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Acne Treatment: This is the most common use of Tretinoin. It helps remove dead skin cells, reduce clogged pores, prevent new acne from forming, and helps treat inflammatory acne, blackheads, and whiteheads.<\/li>\n<li>Reduces dark spots, improves skin pigmentation: Thanks to its ability to speed up the skin renewal process, Tretinoin helps fade post-acne dark spots, evens skin tone and supports the treatment of pigmentation problems such as melasma and freckles.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8894 size-full\" title=\"su-dung-tretinoin-in-dieu-tri-mun\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-trong-dieu-tri-mun.webp\" alt=\"Instructions for use Tretinoin in acne treatment\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-trong-dieu-tri-mun.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-trong-dieu-tri-mun-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-trong-dieu-tri-mun-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-trong-dieu-tri-mun-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-trong-dieu-tri-mun-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<ul>\n<li>Anti-aging, reduce wrinkles: Tretinoin stimulates the production of collagen, make skin firmer, reduce small wrinkles and improve elasticity.<\/li>\n<li>Improves skin texture: skin after a period of use Tretinoin usually smooth, stretch the ball over thanks to the regenerative process continuously.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"So_sanh_Tretinoin_va_Retinol\"><\/span><b> Compare Tretinoin and Retinol<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Many people confuse between Tretinoin and Retinol because both belonging to the group of Retinoids, have the effect of promoting the regeneration of the skin, improves acne and anti-aging. However, the main difference lies in the level of impact and the activities of each type:<\/p>\n<ul>\n<li>Tretinoin is a form of Retinoid that works directly without being metabolized in the skin, so it is quickly effective in treating acne, stimulating collagen production and reducing skin pigmentation. However, because of its strong effect, it is more likely to cause irritation, especially for sensitive skin or skin that has never used Retinoid before.<\/li>\n<li><a href=\"https:\/\/drnguyengiap.com\/en\/what-is-retinol\/\">Retinol<\/a> is the precursor of Tretinoin, that is, when applied to the skin, it needs to go through the process of metabolism of Retinoic Acid to exert their effects. This makes Retinol activity softer, less irritation than and is suitable for beginners.<\/li>\n<\/ul>\n<p>If you are new to Retinoid or have<a href=\"https:\/\/drnguyengiap.com\/en\/what-is-sensitive-skin-face\/\"> sensitive skin<\/a>, Retinol is the safe choice. But if you need a more robust product to treat acne, fade fine lines, and are familiar with Retinoid, Tretinoin will be the optimal solution.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac_dang_bao_che_cua_Tretinoin\"><\/span><strong> Dosage forms of Tretinoin<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tretinoin is modulated under different formats to suit each skin type and needs to use:<\/p>\n<ul>\n<li>Cream form: Usually has added moisturizing ingredients, helping to limit dry skin caused by the strong effects of Tretinoin. This form is suitable for <a href=\"https:\/\/drnguyengiap.com\/en\/what-is-dry-skin\/\">dry skin<\/a>, normal skin or skin with signs of aging.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8893\" title=\"su-dung-tretinoin-dang-cream\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-dang-kem.webp\" alt=\"su dung tretinoin sex cream\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-dang-kem.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-dang-kem-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-dang-kem-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-dang-kem-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/su-dung-tretinoin-dang-kem-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<ul>\n<li>Gel: Yes texture, lighter fluid, osmosis quick little which clogs clogged pores. This is the ideal choice for oily, acne prone skin, so helps to control oily better.<\/li>\n<li>Shape solution: Less common, usually have a higher concentration and is mainly prescribed to treat cases of acne heavy. This type can cause dry skin strong and need to use caution.<\/li>\n<\/ul>\n<p>The choice of dosage form fit will help to optimize the therapeutic effect and reduce the risk of skin irritation.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Video share knowledge for the face from Dr Nguyen Giap!\u00a0<\/strong><\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/C3hiAlTyXDs?si=byuihIRlHDQ7sxws&amp;controls=0&amp;start=69\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Huong_dan_su_dung_Tretinoin_dung_cach\"><\/span><b> Instructions for proper use of Tretinoin<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Due to the potent properties, the use of Tretinoin should be clear roadmap to ensure efficiency and limit side effects:<\/p>\n<ol>\n<li>Start low: If you\u2019re new to using it, choose a low concentration (0.025%) and only use it 2\u20133 times a week to give your skin time to adjust. After about 2\u20134 weeks, you can gradually increase the frequency to every other day or every day.<\/li>\n<li>Apply on dry skin: After washing your face, wait at least 20-30 minutes before applying Tretinoin to avoid irritation.<\/li>\n<li>Use small amounts: Just a quality of a pea is enough for entire face. Excessive use does not increase the effectiveness but also easy to cause peeling, redness, burning sensation.<\/li>\n<li>Combined with nourishing cream: To limit dry skin, you can apply a layer of moisturizer right after taking Tretinoin or apply the method of \u201csandwich\u201d (use a layer of cream before and after topical Tretinoin).<\/li>\n<li>Patience with results: the Effect of Tretinoin did not appear immediately. Usually, it takes 6-12 weeks to see the clear improvement on the skin. In the first stage, the skin may be peeling, red light (this is the normal signs of the regeneration of the skin).<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8892\" title=\"huong-dan-cach-su-dung-tretinoin-content-cach\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/huong-dan-cach-su-dung-tretinoin-dung-cach.webp\" alt=\"huong dan cach su dung tretinoin content cach\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/huong-dan-cach-su-dung-tretinoin-dung-cach.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/huong-dan-cach-su-dung-tretinoin-dung-cach-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/huong-dan-cach-su-dung-tretinoin-dung-cach-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/huong-dan-cach-su-dung-tretinoin-dung-cach-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/03\/huong-dan-cach-su-dung-tretinoin-dung-cach-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><b>The important note when using Tretinoin<\/b><\/p>\n<p>Use Tretinoin&#039;t properly can lead to severe irritation. Here are the important things to note:<\/p>\n<ul>\n<li>Always use sunscreen: Tretinoin makes the skin more sensitive to UV rays, so you need to use sunscreen with SPF 30 or more every day to protect the skin from the harmful effects of the sun.<\/li>\n<li>Do not combine with products that have strong acidic: Avoid use at the same time with <a href=\"https:\/\/drnguyengiap.com\/en\/what-are-aha-and-bha\/\">AHA, BHA<\/a>, <a href=\"https:\/\/drnguyengiap.com\/en\/vitamin-c-in-cosmetics\/\">Vitamin C<\/a> high concentrations or Benzoyl Peroxide because it can cause strong irritation and reduce the effectiveness of Tretinoin. If you want to combine, use in the different sessions of the day.<\/li>\n<li>Pay attention to adverse reactions: some people can see the redness of the skin, dry skin, peeling or stinging in the early stages. If the symptoms are too severe, let&#039;s reduce the frequency or switch to form Retinol lighter.<\/li>\n<li>Do not use for pregnant women: Tretinoin can affect the fetus, so it should not be used during pregnancy. If you are planning a pregnancy, please consult your physician before use.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tom_lai\"><\/span><b>Conclusion<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tretinoin is one of the most powerful active ingredients in the skin care field, providing remarkable effects in treating acne, anti-aging and improving skin pigmentation. However, because it is a strong active ingredient, you need to use it correctly to avoid irritation and optimize effectiveness.<\/p>\n<p>If you are looking for a more intensive solution for healthy and beautiful skin, Tretinoin may be the \u201cgolden key\u201d to help you achieve the desired results. But remember, beautiful skin does not come from haste, but from perseverance and proper care. If you have any questions, do not hesitate to consult a dermatologist for the most appropriate guidance.<\/p>","protected":false},"excerpt":{"rendered":"<p>Tretinoin l\u00e0 g\u00ec? L\u00e0m sao \u0111\u1ec3 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3? Trong th\u1ebf gi\u1edbi ch\u0103m s\u00f3c da, c\u00f3 m\u1ed9t th\u00e0nh ph\u1ea7n \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 ch\u1ee9ng minh qua nhi\u1ec1u th\u1eadp k\u1ef7 v\u1ec1 hi\u1ec7u qu\u1ea3 m\u1ea1nh m\u1ebd trong \u0111i\u1ec1u tr\u1ecb m\u1ee5n, ch\u1ed1ng l\u00e3o h\u00f3a v\u00e0 c\u1ea3i thi\u1ec7n k\u1ebft c\u1ea5u da \u0111\u00f3 ch\u00ednh l\u00e0 Tretinoin. \u0110\u01b0\u1ee3c bi\u1ebft<\/p>","protected":false},"author":5,"featured_media":8896,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-8885","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc-chuyen-mon"],"_links":{"self":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts\/8885","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/comments?post=8885"}],"version-history":[{"count":5,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts\/8885\/revisions"}],"predecessor-version":[{"id":12420,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts\/8885\/revisions\/12420"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/media\/8896"}],"wp:attachment":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/media?parent=8885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/categories?post=8885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/tags?post=8885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}