The best time to start working on “anti-aging” is today. Healthy skin is a marathon, not a sprint.
While it can vary, a good rule is to start your anti-aging routine in your mid-to late 20s or early 30s. At this age, the skin's natural collagen production starts to decrease, and the first signs of aging may begin to appear, such as fine lines and a loss of elasticity. By using certain anti-aging creams early, you can help maintain your skin's health and prevent premature aging.
Sunscreen with at least SPF 30 is critical for any anti-aging routine and should be used everyday regardless of age - this is the best investment you can make in your skin. Another very effective ingredient to incorporate is a retinoid (e.g., retinol, tretinoin, adapalene). These may initially cause some irritation, however this can be combated with moisturizer use and intermittent usage. These can be prescribed by a board-certified dermatologist.
It's never too early or too late to begin incorporating anti-aging ingredients into your skincare routine. Remember, prevention is the key to keeping your skin looking its best.