Retinol is effective for targeting acne and preventing signs of ageing in mature skin (30+), but it’s not for everyone, especially teens. Too much retinol can cause redness, peeling, and dryness. It should only ever be used on young skin if advised by a skincare professional or dermatologist. Start with a low concentration (0.25% or 0.5%) and apply only a small amount – a pea-sized drop for the entire face is enough. Never use it if you have sensitive or irritated skin. All You Need to Know About Actives Retinol and Retinal (Vitamin A) BHA and PHA ( Beta-Hydroxy and Polyhydroxy Acids) BHAs (like salicylic acid) are great for reducing acne and exfoliating dead skin cells, but they can also lead to drying if overused. Limit their use to 1-2 times per week unless advised otherwise by a dermatologist. PHAs, in comparison, are a gentler, more gradual alternative to BHAs that support the skin’s barrier function, increase moisture and remove dead skin cells.
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