What each ingredient actually does, who it is for, and the products we trust for it. Start with calming and repairing actives; add correcting ones once your barrier is happy.

Centella asiatica, Korea's "tiger grass", and its purified compounds madecassoside and asiaticoside calm irritation, support wound-healing pathways and help a stressed barrier recover. It is the backbone of K-derma for reactive skin.
Shop 312 products →
Ceramides make up about half of the lipids that hold the skin barrier together. Topical ceramides, especially combined with cholesterol and fatty acids, restore that "mortar" so skin holds water and reacts less.
Shop 32 products →
Panthenol, pro-vitamin B5, is a humectant and soothing agent that converts to pantothenic acid in the skin, helping it stay hydrated and recover faster from irritation.
Shop 39 products →
Two of Korea's favourite calming botanicals. Heartleaf (houttuynia cordata) soothes and purifies; mugwort (artemisia) is a classic anti-redness, anti-irritation extract.
Shop 37 products →
Postbiotics, probiotic lysates and ferments support a balanced skin microbiome, one of the newest frontiers in calming reactive skin.
Shop 22 products →
Niacinamide (vitamin B3) is the multi-tasker of skincare: it strengthens the barrier, refines the look of pores, balances oil and helps fade uneven tone, typically well tolerated at 2–5%.
Shop 36 products →
Hyaluronic acid binds water in the skin. Multi-molecular-weight formulas hydrate at the surface and deeper in the outer layers for plumper, smoother-looking skin.
Shop 135 products →
PDRN (polydeoxyribonucleotide) is the regenerative ingredient behind in-clinic "Rejuran"-style skin boosters. Topical formulas support the look of repair, elasticity and recovery.
Shop 141 products →
Discover the transformative power of skin boosters designed to elevate your skincare routine. Our curated selection features cutting-edge exosome serums and advanced PDRN ampoules, carefully crafted for skin repair, firmness, and a radiant glow....
Shop 125 products →
Peptides are short chains of amino acids that act as messengers, signalling skin to support collagen and firmness. They are gentle enough for sensitive skin that cannot tolerate retinoids.
Shop 73 products →
Vitamin A derivatives are the most researched anti-ageing actives. Retinal works faster than retinol; bakuchiol is a plant-based option for sensitive or pregnant skin.
Shop 94 products →
Vitamin C is an antioxidant that brightens, helps fade dark spots and boosts the protection of your morning SPF. Derivatives are gentler for sensitive skin than pure L-ascorbic acid.
Shop 69 products →
Azelaic acid calms visible redness, refines bumps and fades post-inflammatory marks. It is a favourite for rosacea-prone and acne-prone skin that cannot tolerate strong acids.
Shop 1 product →
Tranexamic acid interrupts the pathways that drive stubborn pigmentation, making it a gentle choice for melasma-prone skin and dark spots, including after treatments.
Shop 20 products →
Chemical exfoliants dissolve dead cells (AHA, PHA) or clear inside pores (BHA). We favour lower-strength and PHA formats that are kinder to sensitive skin.
Shop 36 products →
Snail secretion filtrate delivers hydration, glycoproteins and soothing compounds that support a smooth, recovered-looking complexion.
Shop 25 products →
Sensitive & reactive
Redness & rosacea
Damaged barrier
Post-procedure
Acne & breakouts
Dark spots
Lines & firmness
Dehydration



Start barrier-first: fragrance-free cleansers, ceramide or cica moisturisers and mineral SPF. Add one active at a time, patch-tested. Shop the sensitive edit →
Days 0–3: calm with cica, panthenol and hydrogel masks, no actives. Days 3–14: PDRN, peptides or exosome serums. SPF 50 every day. See the aftercare edit →
PDRN is DNA fragments that support repair signals, exosomes are tiny vesicles carrying growth factors, NAD+ supports cellular energy. See them explained visually →
From Canada, the US and Korea, worldwide. Shipping is free over $50 USD / $70 CAD, and volume savings apply automatically. Shipping & FAQ →
Yes. Authentic products only, chosen by skin professionals, with honest everyday prices. Read The Lab Standard →
Not sure what to search?Take the 60-second Skin Finder: 3 questions, a 4-step routine.→
Or , a real person replies.