The difference between isotretinoin and tretinoin
Isotretinoin and retinoic acid (Retinoic Acid) are two chemicals related to skin health and treatment. They have significant differences in chemical structure, mechanism of action and clinical application. In the next 1000 words, we will discuss the differences between these two substances in detail to help you better understand their properties and uses.
Chemical structure:
IsotretinoinAAcid: The chemical name of isotretinoinAacid is13-cis-retinoic acid (13-cis-Retinoic Acid). It is a synthetic derivative of vitamin A (also known as retinoic acid) and has the structural characteristics of vitamin A. The molecular formula of isodimensionalAacid isC20H28O2.
VitaminAAcid: VitaminAacid is an active form of vitamin A, also known as all-trans-retinoic acid (All-trans-Retinoic Acid). It is the natural form of vitamin A and has a specific chemical structure. The molecular formula of dimensional A acid is also C20H28O2, but its structure is slightly different from that of isodimensional A acid, mainly in the configuration of the double bonds.
Mechanism of action:
IsotretinoinAacid: The main mechanism of action of isotretinoinAacid includes reducing sebum secretion, promoting exfoliation of cuticles, reducing inflammation and inhibiting the growth of bacteria caused by acne. It improves acne symptoms by affecting the growth, differentiation and repair of skin cells, but it is not a hormonal drug.
VitaminAAcid: VitaminAAcid is the natural active form of vitamin A, which plays an important role in maintaining normal skin physiological functions. It regulates the proliferation and differentiation of skin cells, helps repair damaged skin, alleviates skin problems, and plays a role in preventing and reversing skin aging.

Clinical Application:
IsotretinoinAAcid: IsotretinoinAacid is primarily used to treat severe acne, especially in patients with refractory acne that has not responded to other treatments. It is a very effective drug, but it also comes with a range of serious side effects and potential risks, so it should only be used under the supervision of a professional doctor.
Retinoic acidAAcid: Retinoic acid is widely used in the medical and cosmetic fields. It is used to treat a variety of skin problems such as acne, wrinkles, pigmentation, pimples and other skin-related problems. In addition, it is an important pharmaceutical ingredient used to treat some leukemias and cell proliferative diseases.
Drug Safety:
Isotretinoin: Isotretinoin is very effective in treating acne, but it comes with a range of serious side effects and potential risks. Most importantly, it poses serious risks to pregnancy and can cause severe fetal malformations. Therefore, during use, women must take effective contraceptive measures and conduct regular pregnancy tests to ensure safety.
RetinoicAAcid: Retinoic acid is commonly used topically to treat skin problems such as acne and wrinkles and is relatively safe. But overuse or incorrect use can lead to problems such as dry skin, red spots, and allergic reactions. When using retinoic acid products, it is recommended to follow the recommendations of your doctor or product instructions.
In short, isotretinoin and retinoic acid are two chemicals related to skin health and treatment. They have significant differences in chemical structure, mechanism of action and clinical application. IsotretinoinAacid is a synthetic drug used to treat stubborn acne, while vitamin AAAcid is the natural form of vitamin A and is widely used in the medical and cosmetic fields. Patients need to closely follow their doctor's recommendations when using both medications to ensure safe and effective treatment. Particularly during use of isotretinoin, women must exercise extreme caution and use contraception to prevent pregnancy and reduce fetal risk.
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