01
Evening only. On dry skin.
Three to four drops, after cleansing and toner. Do not layer on damp skin — water increases retinol penetration and the risk of irritation.
SKU SB-—
Double Lock Retinol Serum
Concentrated time-release Retinol serum with Hyaluronic Acid, Gigawhite, and Snow Cell. Improves fine lines, lifts, smooths, and rejuvenates.
$39.00
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Made in KoreaTime-Release RetinolFree Shipping over $50Free Samples
The Hero Ingredient
Time-release Retinol — the cell-turnover signal, without the redness.
Standard retinol delivers too much, too fast. The skin reads it as an irritant — flushing, peeling, downtime. Most users abandon the active before the result arrives.
Double Lock uses a time-release retinol system: the molecule is encapsulated and metered out across hours. The turnover signal continues through the night, layered with hyaluronic acid for hydration, Gigawhite for tone, and Snow Cell complex for barrier support — so the result builds without the irritation that ends most retinol routines.
Time-Release
Retinol is metered out across hours, not delivered in a single spike
PM
Night-only application — retinol degrades in sunlight
Daily
Once nightly — consistency is the difference between irritation and result
The Ritual
Night only. Then patience.
Retinol works while you sleep. Apply on dry skin after toner; finish with a sealing cream. Build slowly — every other night for the first two weeks, then nightly.
02
Press, do not rub.
Warm the drops between palms and press across cheeks, forehead, and chin. Avoid the immediate eye area and the corners of the mouth on the first weeks.
03
Always finish with cream and SPF tomorrow.
Seal with Cell-Repair Crème. The next morning, SPF is non-negotiable — retinol-treated skin is more photo-sensitive.
Ingredient Evidence
What the formula is built on.
Double Lock is built around retinol, the most-studied anti-aging active in dermatology. The time-release format addresses the single biggest reason retinol routines fail: irritation. Gigawhite and Snow Cell are added for tone and barrier.
Retinol
Gold-standard active for fine lines, texture, and cellular turnover
Time-Release
Encapsulated delivery — metered out across hours instead of a single spike
Gigawhite
Plant-based brightening complex — alpine herbs for tone uniformity
Snow Cell
Snow Blanc's signature barrier-support complex with hyaluronic acid and vitamins
Numbers reflect formulation parameters and published retinol mechanisms — not a Snow Blanc consumer trial. Retinol-treated skin is more sun-sensitive; daily SPF is required.
The Formula
Everything that's in. Nothing that isn't.
Hero ingredients
Retinol (time-release) — the gold-standard cell-turnover signal in dermatology. Encapsulated for slow metered release across the night, reducing the irritation profile of standard retinol.
Hyaluronic Acid — multiple molecular weights for hydration that offsets retinol's drying effect.
Gigawhite — proprietary plant-based brightening complex; alpine herb extracts that support tone uniformity.
Snow Cell — Snow Blanc's signature barrier-support complex; vitamins and antioxidants that protect treated skin overnight.
Full INCI list
Full INCI list is printed on the package. The hero active is encapsulated Retinol, supported by Hyaluronic Acid, Gigawhite (Malva Sylvestris, Mentha Piperita, Primula Veris, Alchemilla Vulgaris, Veronica Officinalis, Melissa Officinalis, Achillea Millefolium), and Snow Cell barrier complex.
Free from
Parabens · Sulfates · Mineral oil · Phthalates · Synthetic colorants · Added fragrance (beyond ingredient-level). Cruelty-free.
How to use
Evening only. After cleansing and toner. Apply 3–4 drops to dry skin (not damp). Press into face — avoid eye area and corners of the mouth in the first two weeks. Build slowly: every other night for two weeks, then nightly. Finish with moisturizer. Daily SPF is non-negotiable.
Pregnancy & sensitivity
Contains Retinol. Not recommended during pregnancy or while nursing. For sensitive skin, patch test on the inner forearm 24 hours before first full-face use and begin at every-other-night frequency. Stop use if persistent redness or peeling occurs beyond the first two weeks.
Reviews
First reviews coming soon.
Double Lock Retinol Serum is a recent addition to the Snow Blanc range. We only display reviews verified through our store or authorized retailers — be one of the first.
Complete the Routine
Formulas that pair with the Retinol.
Retinol needs hydration before and cream after. These three formulas, chosen most often alongside Double Lock, complete the evening routine.