13 — Barrier boost B3 serum

25ml+/- 3 months of usage

A waterweight serum that strengthens your skin barrier (the foundation of healthy and self-regulating skin!), visibly minimises pore size, and refines uneven skin tone.

In a clinical trial

8 out of 10 subjects said their skin barrier improved after 6 weeks.

See full clinical trial

  • Niacinamide

    Found in many foods including yeast and beans, Niacinamide (Vitamin B3) is a true skincare staple.

  • Ceramides

    Waxy lipids that are naturally occurring in the outer layer of the skin.

Don't miss out! Free shipping sitewide for all orders to Europe. Order before 10 PM in the Netherlands and Belgium for next day delivery. For other countries, orders will be dispatched within 48 hours.

Returns are free of charge. Products are eligible for return within 30 days of date of purchase.


For a limited time only, free shipping sitewide

Minimalist beauty
Made in Switzerland

Why it's special

Formulated at an optimal 5% niacinamide, it delivers proven effects without leaving any residue on skin. Cleverly combined with ceramides to complement niacinamide's potency in boosting your skin's own ceramide production, for double the restoring power.

  • How

    Press the dropper and release 2-3 drops in the palm of your hand, on your finger tips or directly on a cleansed face and neck. To ensure optimal hygiene, the dropper should never make contact with your face or hands. Gently massage or pat the liquid into your skin. Wait for the serum to fully absorb and follow with a moisturizer to lock all the good stuff in.

  • Texture

    A waterweight, transparent fluid that absorbs quickly into the skin.

  • When

    Every morning and evening, after cleansing and before moisturizing.

Download the app for personal guidance.

Routinely uses 5% niacinamide since the most promising studies are done on this percentage. When increasing the percentage, the risk of irritation grows while there is no proof of increased performance.

Combines well with


Leveraging the best of nature and science

Clean formulas

Formulated without ingredients shown or suspected to harm human or planet health

Local production

Co-created and manufactured with a boutique R&D lab in Switzerland