The Formula · S01

Named. Dosed. Disclosed.

Every active named. Every dose stated. Nothing added to lengthen the list.

The Serum texture
The actives

What is in the bottle

Every item below is there for a reason. Nothing is borrowed from a convention built for a different customer.

ActiveDoseWhat it is there to do
Sodium ascorbyl phosphate10%Stable vitamin C. Even tone, no sting, no orange oxidation.
Niacinamide5%Supports the look of even tone and refined texture at its working dose.
Alpha arbutin2%Helps reduce the look of uneven tone and marks along the jaw and beard line.
Matrixyl Synthe’62%Peptide within SiriusDefence™. Supports the look of firmness.
Hydrolysed lupine protein1.5%Within SiriusDefence™. Lupin is a declared allergen on the ingredient list.
Ectoin1.0%Within SiriusBarrier™. Supports skin through daily shaving and environmental stress.
Panthenol1.0%Pro-vitamin B5. Comfort and suppleness.
Beta glucan0.5%Within SiriusBarrier™. Soft, calm finish.
Hyaluronic acid, two weights0.2%Surface and deeper hydration in one pass.

Fragrance free by founding rule. Full INCI list published at launch.

The obvious question

Where is the vitamin E and ferulic acid?

Vitamin C with vitamin E is a convention built around L-ascorbic acid, which needs it to stabilise. Sodium ascorbyl phosphate does not. The Serum already carries two working antioxidants and SiriusBarrier™ for the stress that matters on skin shaved most days.

We did not rebuild a twenty year old formula for a different face. We built one for this one.

Sirius London
The territory

The blade leaves marks

Shaving is a daily stress event. The marks it leaves along the jaw and neck are most persistent on medium and deep skin tones, and most brands were not thinking about that face when they wrote the formula.

Tone correction where the blade does its damage, at a pH the skin can live with, every morning.

Reserve S01. £95