Fragrance-free, single-active skincareFree shipping over $60All prices in USD
Onyx Skin Co.

Skincare with nothing withheld

The full formula, stated.

Every product publishes its complete ingredient list, its key active at a stated concentration, how to use it, and who it is not for. Fragrance-free, single-active formulas — no adjectives doing the work of a label.

Free shipping over $60 · Ships in 3–5 business days · All prices in USD

Fragrance-free

No fragrance and no essential oils in anything we make.

One active, stated

Each formula names its key active and the percentage it is used at.

The full INCI

The complete ingredient list on every product page, before you buy.

30-day returns

Unopened and in original packaging. Refunded within 5 business days.

Where most routines start

A place to start

The formulation record

Three things every product page tells you.

Most brands tell you a serum is transformative. We would rather tell you it is 15% vitamin C, that it may tingle on first use, and that it is not for the same night as your acids. You can decide about transformative yourself.

Read the ingredients
01
What it is made of
The complete ingredient list on every product — the full INCI, in descending order, not a curated highlight reel.
02
The active, at a stated %
One key active per formula, named and quantified. '15% L-ascorbic acid', not 'brightening complex'. You know exactly what you are applying.
03
Who it is not for
The line most brands leave out. Patch-test guidance, what not to layer together, and any pregnancy note — read now, not discovered after purchase.

Seven categories, 14 products

By category

A four-step Onyx Skin Co. routine laid out in order on a stone shelf: cleanser, serum, moisturizer and sunscreen.

A routine you can read

Four steps. Nothing you have to guess at.

A routine that works is short and consistent. The order below is the whole of it — the detail behind each step, including what not to layer, is on the how-to-use page.

  1. 1

    Cleanse

    Morning and night. A gel or a cream, depending on how your skin behaves.

  2. 2

    Treat

    Vitamin C in the morning. Retinaldehyde or an acid at night — on alternate nights, never the same one.

  3. 3

    Moisturize

    Ceramides and glycerin over whatever you have just applied, morning and night.

  4. 4

    Protect

    Mineral SPF every morning without exception. Actives leave skin more sun-sensitive.

How to use each active

Seven actives

We work with a short list of proven actives.

Seven actives, chosen because the evidence behind them is settled. Each does one job — vitamin C brightens, retinaldehyde smooths, ceramides repair the barrier — and we would rather explain that than hide it inside a proprietary blend.

How each one works

Vitamin C

Stabilised L-ascorbic acid at a stated 15%. Brightens tone and supports collagen. Used in the morning, under sunscreen.

Retinaldehyde

A retinoid one step stronger than retinol and gentler than the strongest clinical retinoids. Night use only, built up slowly.

Niacinamide

Vitamin B3 at 5%. Calms redness, refines the look of pores and supports the barrier. One of the easiest actives to tolerate.

Exfoliating Acids

Glycolic (AHA) and salicylic (BHA) acids at a stated strength. Lift dead surface cells; not for use every night.

Hyaluronic Acid

Multi-weight sodium hyaluronate and glycerin. Draws water into the upper layers of the skin. Layered onto damp skin.

Ceramides

Barrier lipids in a physiological ratio. They are what a compromised or over-exfoliated barrier is short of.

Mineral Filters

Non-nano zinc oxide and titanium dioxide. Sit on the surface and reflect UV; suitable for reactive and post-procedure skin.