Ingredients

Category

Ingredients

Know exactly what's in the bottle and why it matters.

Quick answer

The Ingredients library is the most thorough English-language reference for skincare actives we know how to build. Each entry breaks down what an ingredient is, the mechanism by which it works, the clinical evidence behind it, who should and shouldn't use it, and how to layer it without canceling other actives.

Browse Ingredients

Retinoids & Bakuchiol

Retinol, retinal, tretinoin, bakuchiol — every option, decoded.

Vitamin C

Every form of vitamin C — LAA, SAP, MAP, THD, glucoside.

Niacinamide

The all-rounder vitamin B3, properly explained.

Peptides

Signal, carrier, neuropeptides — and which actually work.

Acids (AHA / BHA / PHA)

The exfoliant family from gentlest to strongest.

Hydrators

Hyaluronic acid, glycerin, polyglutamic acid, beta-glucan.

Ceramides & Lipids

Barrier-repair lipids the skin actually uses.

Microbiome Ingredients

Pre/pro/postbiotics, ferments, and biome-friendly botanicals.

Korean & Biotech Actives

PDRN, exosomes, EGF, snail mucin, propolis, galactomyces.

Sunscreen Filters

Mineral, chemical, and what's actually FDA-approved in the US.

Latest in Ingredients

Modern skincare is an ingredient game. Brand names matter less than the molecules inside the bottle, and the brands that succeed are the ones that explain those molecules honestly. The Ingredients library exists because nobody else is doing this work at the depth and clarity it deserves.

How it's organized

Ten subcategories cover the whole field: Retinoids & Bakuchiol (the cell-turnover family), Vitamin C (every form, from L-ascorbic acid to ascorbyl glucoside), Niacinamide, Peptides, Acids (AHA, BHA, PHA), Hydrators (hyaluronic acid, glycerin, polyglutamic acid), Ceramides & Lipids, Microbiome Ingredients (pre/pro/postbiotics, ferments), Korean & Biotech Actives (PDRN, exosomes, snail mucin), and Sunscreen Filters.

What an ingredient article includes

Every entry follows the same structure. A 60–90 word quick-answer up top so you can leave with the key facts in 30 seconds. Then the science, in plain English. Then the clinical evidence, with citations and publication dates so you can verify. Pairing rules, side effects, who should avoid, recommended concentrations, and which forms are FDA-approved in the US.

Why we care about provenance

Elelaf is FDA-approved and manufactured in South Korea — the world's most innovative skincare lab ecosystem. We pay close attention to which ingredients are approved where, and which are still under regulatory review (looking at you, exosomes). Our ingredient pages will always tell you the regulatory status, not just the marketing claim.

Frequently asked questions

Which skincare ingredient is the most important to add to a basic routine?
After a cleanser, moisturizer, and SPF, the highest-impact addition is a vitamin C serum (morning) or a retinoid (night). Both have decades of clinical evidence for visible results.
Are 'natural' ingredients better than synthetic ones?
Not inherently. 'Natural' is a marketing term, not a safety or efficacy designation. Some plant-derived ingredients (essential oils, witch hazel) are more irritating than synthetic alternatives. Look at the molecule, not the source.
How do I know if an ingredient is FDA-approved?
Check the FDA's monograph for OTC drug ingredients (sunscreen filters, acne actives like salicylic acid and benzoyl peroxide). Cosmetic ingredients aren't 'approved' the same way — they fall under FDA cosmetic regulations. Each Elelaf ingredient article notes the regulatory status.
Can I mix multiple active ingredients?
Many actives layer well together. Some don't. The Ingredients library includes a layering guide for every active explaining what's safe to combine and what should go in opposite routines.