Cutting through the hype
Skincare aisles and social feeds are crowded with promises. The reassuring truth is that only a handful of ingredients have strong evidence behind them, and once you understand what they do, you can build an effective routine without the overwhelm or the overspending.
Retinoids (retinol and friends)
Retinoids are vitamin A derivatives and among the most studied skincare ingredients. They speed cell turnover, help unclog pores, and improve fine lines and tone over time. Start low and slow, two or three nights a week, to let your skin adjust, and always pair with daytime SPF, as retinoids can increase sun sensitivity.
Retinoids and pregnancy
Retinoids are generally advised against during pregnancy and breastfeeding. If this applies to you, check with a clinician or pharmacist before use.
Exfoliating acids: AHAs and BHAs
- AHAs (like glycolic and lactic acid) work on the surface, helping with dullness, texture, and uneven tone
- BHAs (salicylic acid) are oil-soluble, getting into pores, which makes them great for oily and acne-prone skin
- Use these a few times a week, not daily at first, and don't layer multiple strong actives at once
Niacinamide
Niacinamide (a form of vitamin B3) is a gentle all-rounder. It supports the skin barrier, helps with redness, oil, and uneven tone, and is well tolerated by most skin types, including sensitive skin. It plays nicely with most other ingredients.
Vitamin C
Vitamin C is an antioxidant used in the morning to help defend against environmental damage and brighten the complexion over time. It complements, but doesn't replace, sunscreen.
How to layer without irritating your skin
- Introduce one new active at a time and wait a couple of weeks
- Don't combine multiple strong actives in the same routine when starting out
- Moisturise to support your barrier, and always use morning SPF
- If skin becomes red, stinging, or flaky, scale back frequency
More is not better
Piling on actives is the fastest route to a damaged barrier and irritated skin. A simple, consistent routine beats a crowded shelf.
When to get professional advice
If you have a specific concern like persistent acne, melasma, or rosacea, or you're unsure what your skin needs, a clinician can recommend the right actives and strengths, including prescription options that outperform over-the-counter versions. Avoid high-strength prescription actives bought without guidance.
Reactions to watch
A severe burning reaction, swelling, or a spreading rash after a product needs medical attention. For facial swelling with breathing difficulty, call 911 (US/CA), 999 (UK), or 112 (EU).
Not sure which actives suit your skin or how to combine them safely? On iHealix you can ask a verified dermatologist or doctor online to review your routine and build a plan around your actual skin concerns.