Barrier boost B3 serum

Niacinamide + Ceramides +/- 3 months of usage €0.33 / day

Safe for sensitive skin
All skin types
Strenghtens skin barrier
Reduces pore size
Improves skin texture

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.


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  • Niacinamide

    This form of vitamin B evens out skin tone and texture, fights blemishes, brightens hyperpigmentation, unclogs pores, treats signs of ageing, all while replenishing hydration. Formulated at an optimal 5% to ensure effectiveness without irritation, this star ingredient lives up to all of the hype.

  • Ceramides

    Truly moisturizing, ceramides help restore the skin barrier to keep it hydrated and healthy. Dry, flakey skin is reduced within weeks for a soft, supple look and feel.

aqua (water) (solvent), niacinamide (skin restoring), propanediol (solvent), diglycerin (moisturizer/humectant), glycerin (moisturizer/humectant), 1,2-hexanediol (solvent), glycine soja (soybean) seed extract (antioxidant), hydroxyacetophenone (antioxidant), polyacrylate crosspolymer-6 (viscosity controlling), ceramide np (skin replenishing ), polyglyceryl-10 stearate (emulsifying), hydrogenated lecithin ( emulsifying), sucrose stearate (emollient), tetrasodium glutamate diacetate (chelating), citric acid (PH adjusting)

How to apply

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.


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


Every morning and evening, after cleansing and before moisturizing.

Is this the right serum for me?

Skincare is not one size fits all. It's personal. That's why we always suggest taking our quick skin Q&A to find out which serums suit you best.

Real results

dermatologically tested & tolerance tested. 8 out of 10 subjects said their skin barrier improved after 6 weeks.

See full clinical trial

Free shipping

Shipped within 24 hours

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.



Minimalist beauty

Made in Switzerland

Our philosophy

We craft our formulas with a minimalist mindset. We only use proven active ingredients in proper dosages to ensure maximal efficacy, without irritation. No fillers, additives or fragrance- ever.

Did you know?

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.

Reviewed by you


Routine 03 · 13

Ik heb routinely 3 en 13. De drie aanbevolen druppeltjes zijn wat weinig, dus ik gebruik er vijf per keer. Maar verder wel heel tevreden. Ik merk dat mijn huid soepeler wordt.

Easy to follow routine

Routine 13 · 18 · 05

The routine is easy to follow. I started 3 weeks ago so still to early to know if it works. My face looks healthier and feels better too but I also use other products next to it.

Best skincare

Routine 13

I'm using one of your serums. I have seen improvements in my skin already after one week. I am going to continue my skincare with you, because this is the first time I am satisfied. I have tried many products that are not needed, but finally now I have found the right one.

Fijne producten

Routine 13 · 03 · 48

Makkelijk te gebruiken, goede resultaten voor mijn huid. Al na een dikke week


Ask us anything

We're here to help and demystify everything about
Barrier boost B3 serum.

Hoi! Ik ben op zoek naar een serum voor een droge huid met rosacea. Ik zou het liefst iets hydraterends hebben, waar mijn huid niet sterk op reageert. Dank alvast!

Je noemde rosacea. Om deze reden zou ik de 07 - 360° Azelaic Acid Serum aanraden in combinatie met de 06 - Soothing 5-Plant Extract Serum. Deze combinatie zou erg helpen want azelaïnezuur (uit de 07) is geweldig om ontstekingen te bestrijden en verzacht de huid. Serum 06 zal verder helpen te kalmeren. De 13 - Barrier Boost B3 Serum zou ook helpen bij rosacea en om droge huid te behandelen.

Is it safe to use Niacinamide with other sort of acid or will it turn into Niacin?

Yes, our formulation is safe to use with other acids, also Vitamin C. If you want to be a 100% sure about Niacinamide in your product not turning into Niacin, wait for the one product to dry first before applying the other.

Do your products have microplastics?

Our products do not contain microplastics.

Combines well with

Our experts recommend trying this product in combination 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.

Barrier boost B3 serum


In stockFree shippingShipped within 24 hours