Ingredients
Silicones decoded: why the ‘suffocating’ label was always wrong
Silicones do not suffocate skin. Here is the molecular reality, the cases where they actually do harm, and how to read silicone…
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
Ingredients
Centella asiatica sourcing: Madagascar vs Korea, and why it changes results
Madagascar wild-harvest centella has a different asiaticoside ratio than Korean cultivated supply. How sourcing alters the soothing profile of a product.
Ingredients
Bakuchiol sourcing: India vs Nepal, and what that means for your skin
Bakuchiol from India and Nepal carries different seed-oil profiles and different traceability records. A sourcing audit and what we use in future…
Ingredients
Vitamin C darkening: a visual timeline from pale straw to brown
Pure L-ascorbic acid goes amber within weeks. A week-by-week visual timeline showing what color actually means and when to stop using your…
Ingredients
Retinoid stability by form: which vitamin A survives bathroom light daily
Retinaldehyde, retinol, and granactive retinoid degrade at very different speeds. How form, packaging, and pH interact across a full one-year stability test.
Ingredients
Rosehip oil cold-pressed truth: what the label on your bottle really means
Most cold-pressed claims fail audit. How rosehip oil is actually extracted, why Chilean and Bulgarian sources differ, and what to look for…
Ingredients
Bee products in skincare: a cruelty audit of honey, propolis, and royal jelly
Honey is not automatically ethical; propolis varies widely. A welfare audit of bee-derived skincare ingredients and how to read sourcing transparency well.
Ingredients
Airless vs dropper: why packaging decides your serum’s real shelf life
A dropper invites oxygen with every use. How airless pumps, tubes, and vacuum vials change actual ingredient potency across a 90-day shelf-life…
Ingredients
Refrigerated skincare: what actually benefits from a 4 C shelf
A skincare fridge helps four ingredient classes and ruins three others. The evidence-based shortlist of what should chill and what stays room…
Ingredients
Skincare oxidation: what actually changes inside the bottle over time
Oxidation is invisible at first and irreversible later. What changes molecularly in serums, which ingredients fail first, and how to slow the…
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.