Tretinoin - a first-line therapy for skin

Explore how tretinoin, a prescription retinoid therapy, combats photoaging, improves skin texture, reduces wrinkles, and restores collagen.

THE SKIN

Skin is our first point of contact with the outside world. It is a living coat of armor that continuously protects us. As we age, our skin gradually breaks down. Tretinoin, one of the most studied topical treatments in dermatology, is an established and effective prescription retinoid therapy used to combat problematic skin and the adverse effects of aging.

The skin is one of the largest organs in the human body, making up approximately 15% of an adult's body weight. It can protect us from threats and stressors, prevent water loss, and influence our self-image.

Various factors, such as aging and inflammation, can alter the skin's structure and appearance. These visible changes raise both cosmetic and functional concerns, including fragility, wound-healing issues, thinning skin due to collagen loss, and increased cancer susceptibility.

THE PHOTOAGED SKIN

A major contributor to aging skin is ultraviolet (UV) radiation. Over time and with repeated exposure, UVA breaks down collagen in the dermis, the middle layer of the skin, and prevents collagen production. Simultaneously, UVB radiation damages DNA in epidermal skin cells, the outer layer o f the skin. This effect, known as photoaging, alters the skin's appearance and can manifest wrinkles, roughness, irregular pigmentation, age spots, reduced elasticity, and pale, tired skin.

VITAMIN A AND THE SKIN CONNECTION

Vitamin A refers to retinol and its metabolites - retinaldehyde and retinoic acid. Retinoic acid is the biologically active form of retinol that binds to retinoic acid receptors located within the skin cells. When retinoic acid binds to the retinoic acid receptor, collagen is produced, and new cells replace old or damaged cells (cell turnover). This process can be disrupted as we age, leading to decreased collagen production and lower cell turnover rates, altering the skin's appearance.

What are retinoids?

Retinoids refer to the family of vitamin A compounds. Retinoids include vitamin A in its natural forms (retinyl esters, retinol, retinaldehyde, and retinoic acid) and synthetic forms, such as tretinoin.

Retinoids in the form of retinoic acid bind to and activate retinoic acid receptors within the skin cell. Retinoic acid receptors activate genes within said cells, which, in turn, affect skin structure and function.

Clinical studies show that retinoids are beneficial for skin health and, as such, have been used in cosmetic and clinical settings for the treatment of acne and photoaging.

Cosmetic vs. prescription retinoids

Over-the-counter retinoids include the three precursors to retinoic acid: retinyl esters, retinol, and retinaldehyde. Unfortunately, most retinoids in these over-the-counter products, apart from retinaldehyde, are somewhat ineffective for managing the effects of photoaging.

Most prescription retinoids are in the form of retinoic acid. Prescription retinoic acid treatments, such as tretinoin (all-trans-retinoic acid), can be significantly more potent and effective than over-the-counter retinoids like retinol or retinaldehyde.

The benefits of tretinoin

Retinoic acid is a strong treatment option for hyperpigmentation, a condition characterized by dark spots and associated with aging and UV exposure. It works through several mechanisms, including regulating melanin production and distribution, accelerating skin cell turnover, inhibiting inflammation that can cause hyperpigmentation, and stimulating collagen, which can improve skin texture and complexion.

Retinoic acid is an effective treatment option for addressing clogged pores and acne.

Retinoic acid helps to treat deep wrinkles and fine lines.

Retinoic acid improves skin color by stimulating the production of blood vessels in the skin.

Retinoic acid stimulates the production of keratinocytes, the primary type of skin cell that comprises the epidermis. By increasing keratinocyte production, retinoic acid effectively increases skin thickness.

FDA APPROVAL OF TRETINOIN

Topical tretinoin was the first retinoid approved by the FDA for acne and later for the improvement of photodamaged skin. Initially approved in 1971, the topical treatment has been used in dermatological settings for the past fifty years. Decades of research have highlighted tretinoin's positive effects on the skin, with it described as the most researched retinoid and among the strongest in anti-aging activity. Clinical studies show significant improvement in wrinkles, texture, and hyperpigmentation of photodamaged skin after topical tretinoin treatment. Additionally, a clinical trial demonstrated that the long-term use of 0.05% tretinoin cream is both safe and effective. As it stands, tretinoin is the only retinoid with FDA approval for the mitigation of photodamaged skin.

TRETINOIN - A FRONTLINE INTERVENTION

Tretinoin is often considered revolutionary for its ability to act at a genetic level. It is an evidence-based, clinically validated, FDA-approved therapeutic approach for addressing acne and photodamaged skin. Tretinoin is an effective first-line intervention for combating the visible signs of aging by activating retinoic acid receptors, thereby promoting collagen production, increasing cell turnover, and improving skin texture and pigmentation.

For patients and providers seeking advanced, powerful treatment options focused on skin health and appearance, Tretinoin stands out as a retinoid frontline leader.

Learn more about skin health.