Tretinoin vs Retinol : What is the difference? Concentrations? Risks? How do they work?

In the realm of skincare and dermatology, tretinoin and retinol have gained a well-deserved popularity to address a variety of skin problems, especially acne. Both of these compounds are from the family of retinoids, but they have small differences in their mechanism of action and potency, which can greatly influence whether tretinoin or retinol is the better choice for an individual.

Tretinoin is a highly potent retinoid which works by binding to retinoic acid receptors in your skin cells. It modifies the genes in your skin, resulting in accelerated cell turnover, shedding of old and damaged skin cells, and encouraging the growth of new and healthy skin. This way, it enhances skin texture, reduces hyperpigmentation, and prevents the formation of new acne lesions on the surface of your skin.

Retinol is a precursor of tretinoin, which gets converted into the active form when it reaches under your skin layers. Although it works mostly just like tretinoin, retinol is much less potent. Higher dosages are required for longer periods as compared to tretinoin. However, the fact that it is less potent, makes it much safer for use in people with sensitive skin. Like tretinoin, retinol stimulates the production of collagen, cell turnover, skin renewal, and even in addressing fine lines and wrinkles.

Both of these compounds are available in varying strengths. In most cases, tretinoin is available in lower concentrations than retinol due to its high potency. Beginners in skincare tend to start with lower strengths of either retinol/tretinoin to prevent their skin from reacting negatively. Depending on what their dermatologist suggests, they can increase, maintain or decrease the dosage for the compounds on their skin.

Some risks and considerations when using retinoids include possibility of excess vitamin A in the bloodstream (retinoids are derived from vitamin A), photosensitivity (skin can become more susceptible and sensitive to damage from the sun), and a temporary initial worsening of acne as retinoids prompt your skin to purge impurities like dust, dead cells, and smog particles.