Tretinoin† is a retinoid that may be prescribed to treat: Acne, dark spots, and hyperpigmentation. Fine lines, wrinkles, and signs of premature aging. Convenient and affordable prescriptions and tests delivered with free shipping. $90 for 3 month supply.
Tretinoin is one of the most rigorously studied topical agents in dermatology. Multiple RCTs and meta-analyses confirm efficacy for acne, photoaging (fine lines, skin texture), and melasma. The mechanism is well-established and clinical benefit is consistent across populations. Standard of care in many dermatology guidelines.
Tretinoin (all-trans retinoic acid) is a vitamin A derivative that binds retinoic acid receptors (RARs) in skin cells, promoting cell turnover, collagen synthesis, and normalization of keratinization. It reduces sebum production and has anti-inflammatory effects, making it effective for acne, photoaging, and hyperpigmentation.
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Randomized trial
“INTRODUCTION: Topical therapy is the mainstay treatment of acne, and topical retinoids such as tretinoin, tazarotene, and adapalene are recommended as the first-line therapy for mild to moderate acne.”
“Acne is a common skin condition, but little data exist on the comparative efficacy of topical acne therapies.”
“Acne vulgaris, commonly called acne, is a skin condition affecting many individuals globally.”
“Chronic ultraviolet (UV) exposure is the primary cause of skin photoaging, leading to wrinkles, pigmentation changes, and loss of dermal elasticity.”
Tretinoin causes irritation, photosensitivity, and birth-defect risk in pregnancy (Category C/X depending on formulation and dose); requires sun protection and gradual dose escalation. Efficacy takes 8–12 weeks to manifest. Not suitable for sensitive or compromised skin barriers. Systemic absorption is minimal but not zero.
@LZ
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