Niacinamide, Vitamin C, or Retinol: where do you start?

Niacinamide, Vitamin C, and Retinol show up in almost every skincare recommendation for a reason - each is backed by decades of use and addresses a different concern. The confusion isn't about whether they work, it's about which one to reach for first, and how to introduce them without overwhelming your skin.

Niacinamide (Vitamin B3) helps regulate oil production, strengthens the skin barrier, and calms redness and inflammation. It's gentle enough for daily use, plays well with almost every other ingredient, and suits oily, acne-prone, and sensitive skin alike.

Best for: anyone starting out, or anyone dealing with oiliness, enlarged pores, or a compromised barrier.

Vitamin C is an antioxidant that helps fade dullness, even out tone, and defend skin against everyday environmental stress like pollution and UV exposure. It works best applied in the morning, under sunscreen, where its antioxidant effect complements your SPF rather than replacing it.

Best for: dullness, uneven tone, or as a morning step for anyone wanting brighter-looking skin over time.

Retinol (a Vitamin A derivative) speeds up skin cell turnover, which helps with texture, fine lines, and clogged pores over time. It's the most potent of the three - and the one most likely to cause irritation if introduced too quickly.

Best for: texture, early signs of ageing, or persistent congestion - but only once your skin already tolerates a basic routine well.

Start low and slow: use it two to three nights a week, always at night, and always follow up with sunscreen the next morning, since retinol increases sun sensitivity.

Niacinamide pairs easily with both Vitamin C and Retinol, and is often formulated alongside them. Vitamin C and Retinol are usually better kept apart - Vitamin C in the morning, Retinol at night - to avoid overloading skin that's new to actives.

If you're introducing a new active, add one at a time and give it two to three weeks before judging results or adding the next.

If your skin tolerates most products well, start with Niacinamide - it's the safest, most broadly useful entry point. If dullness and uneven tone are your main concern, add a Vitamin C serum in the morning. Save Retinol for once your routine is settled and your skin has built up some tolerance to actives in general.