Evidence-Based Skincare Articles

Avocado oil for skin is rich in oleic acid and vitamin E. Here is what the research shows it repairs, who should avoid it, and what it cannot rebuild.

Microneedling vs laser resurfacing compared on collagen data, hyperpigmentation risk, downtime and cost, plus the factor that should decide it for you.

A skin care routine for your 40s built on collagen, hormone and sunscreen data, with the steps worth adding and the ones no longer worth paying for.

Melatonin for skin is more than a sleep aid: skin makes its own supply as antioxidant defense. Here's what topical melatonin research actually shows.

NAD+ skincare promises cellular energy and DNA repair, but the molecule is too big to penetrate skin. Here's what the evidence supports and what works instead.

The best skin care routine for your 30s, built on collagen biology: what to add, what to skip, and why this decade gives the highest return per product.

Shopping for the best retinol serum? Percentage is the least predictive number on the label. Here is what form, stability and delivery actually tell you.

Does a hydrating face mist really hydrate? The science of what happens after you spray, why some mists dry skin out, and what to look for on the label.

Skin pH sits near 4.7 for a reason. Here is how surface acidity controls barrier enzymes, why it rises with age, and what that means for your routine.

The best sunscreen for mature skin is the one you apply generously every day. Here's what the clinical evidence says about SPF, UVA, tint, and texture after 50.