Both retinol and tretinoin belong to a class of compounds known as retinoids, all of which are scientifically supported for their skin benefits. Retin-A is the brand name for tretinoin, and it effectively addresses issues like acne, wrinkles, and hyperpigmentation.

Tretinoin: A more concentrated form of vitamin A, which means it acts faster and delivers more dramatic results. However, it can also come with more severe side effects.

For optimal results, I recommend visiting your dermatologist to obtain a prescription for either 0.1% or 0.05% tretinoin. This approach is often more cost-effective and beneficial than many over-the-counter options. Since tretinoin is potent, start by applying a small amount every two to three days. I also use the 0.025% tretinoin concentration on my neck and hands. After several months, you should be able to transition to the 0.1% strength nightly.

Additionally, if you find yourself in Mexico, Retin-A is available over the counter there. I take advantage of this by purchasing several tubes during my visits for extra savings, and I continue using the 0.025% formulation on my hands and neck.