Short answer: There's no single universal age to start, since it depends on individual skin, lifestyle factors like sun exposure, and specific goals, but many dermatological sources suggest preventive habits like sun protection and gentle actives can reasonably begin in the mid-to-late twenties, well before visible aging appears.

"When should I start anti-aging skincare" doesn't have one clean answer, mostly because it depends what "anti-aging" is actually referring to, prevention or treatment of visible signs already present.

Prevention Starts Earlier Than People Expect

Sun protection, arguably the single most impactful anti-aging habit given how much visible aging traces back to cumulative UV exposure, is worth starting as early as possible, genuinely from any age, rather than waiting for a specific milestone. This isn't "anti-aging" in the sense of treating existing signs. It's preventing the damage that leads to those signs showing up later.

Gentle Preventive Actives in the Mid-Twenties

Beyond sun protection, gentle preventive measures, a basic retinoid at a low concentration, antioxidant support, are commonly suggested starting somewhere in the mid-to-late twenties by various dermatological sources, on the reasoning that collagen production naturally begins a gradual decline around this period, even though visible effects are typically still years away.

Treatment-Focused Approaches Come Later, and Vary More

Approaches aimed at addressing visible signs already present, fine lines, early sagging, dullness, are more individual in timing, since they respond to what's actually showing up on a specific person's skin rather than a fixed age. Someone with significant sun exposure history might see visible signs earlier than someone with minimal exposure, independent of chronological age, which is part of why individual assessment matters more than a universal age guideline for this category specifically.

Why Starting "Too Early" Isn't Usually a Real Risk

Concern about starting anti-aging habits too early, before they're "needed," isn't well-founded for genuinely preventive measures like sun protection and gentle antioxidant support, which benefit skin regardless of current visible aging status. The more common issue is starting too late, after cumulative damage that prevention would have addressed has already occurred, rather than starting prevention too soon.