ANABIOTICASubmit a source Skincare.
Skincare evidence spans prevention, prescription treatment, barrier support, pigmentation, acne, and visible photoaging. Results are outcome-specific: evidence for hydration or acne should not be read as evidence for slower biological aging.
12 evidence-ranked entriesWhat the evidence cannot settle yet
Many studies are small, short, formulation-specific, or industry-funded. Concentration, vehicle, stability, device settings, and the condition being treated can materially change whether a result applies to a consumer product.
Risks depend on the intervention
Irritation, dryness, photosensitivity, and pigment changes recur across this category. Prescription retinoids, stronger acids, pregnancy considerations, and light-based devices require product-specific precautions rather than a single skincare rule.
Strong evidence leads this category
Ratings compare confidence in each entry's stated benefit—not whether every intervention is appropriate or recommended.
How ratings workEvery skincare entry
Sorted from stronger to weaker evidence.
Tretinoin
A prescription topical retinoid with strong evidence for improving visible signs of sun-damaged skin.
Broad-Spectrum SPF
Daily broad-spectrum sunscreen has randomized evidence for slowing visible photoaging while reducing ultraviolet exposure.
Adapalene
A topical retinoid with strong acne evidence and smaller off-label evidence for photoaging.
Niacinamide
A well-tolerated vitamin B3 derivative with controlled human evidence for modest improvements in visible photoaging, pigmentation, and skin-barrier function.
Retinol
An over-the-counter vitamin A derivative with controlled human evidence for modest wrinkle improvement, but less standardization than prescription tretinoin.
Hyaluronic Acid
A generally well-tolerated topical humectant that reliably improves surface hydration, with smaller and more formulation-specific evidence for temporary smoothing of fine lines.
Azelaic Acid
A topical dicarboxylic acid with useful evidence for acne, papulopustular rosacea, and some hyperpigmentation disorders.
Ceramide Moisturizers
Barrier-supporting moisturizers that help dry and eczema-prone skin, without clear proof that ceramides outperform every simpler emollient.
Urea
A concentration-dependent moisturizer and keratolytic with useful evidence for dry, thickened, and scaly skin.
Vitamin C
Some formulations may modestly improve pigmentation and visible photoaging, but a small heterogeneous evidence base and unstable chemistry make products hard to compare.
Glycolic Acid
An alpha-hydroxy acid that can improve texture and discoloration, with effects and risks that rise sharply from home products to chemical peels.
Red Light Therapy
Nonthermal red and near-infrared light with promising small trials for visible photoaging, but major device and dosing uncertainty.