The youth tonic

Regenerating retinol serum +/- 3 months of usage €0.33 / day

Safe for sensitive skin
Safe for the eye area
All skin types
Promotes skin renewal
Reduces fine lines and wrinkles
Reduces blemishes

A gentle yet effective retinol serum to boost cell turnover and treat multiple signs of ageing. For skin that's radiating from within with a smooth texture and visibly reduced fine lines and wrinkles.


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  • Retinol

    Otherwise known as vitamin A, this is one of the most studied and effective ingredients in skincare. Our .35% concentration prevents and treats signs of premature ageing, reduces blemishes, and balances tone and texture for firm, vibrant skin.

  • Squalane

    A natural fatty acid derived from olives, best known for its moisturizing and skin-replenishing properties, without clogging pores. Squalane is an ideal oil for blemish-prone skin and a perfect compliment to retinol, as they both have the ability to reduce signs of skin aging.

squalane (emollient), coco-caprylate/caprate ( emollient ), retinyl palmitate (skin restoring), bisabolol (skin soothing), tocopherol (antioxidant)

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, translucent orange milky fluid that absorbs quickly into the skin.


Every morning and evening, after cleansing and before moisturizing.

Real results

dermatologically tested & tolerance tested. 10 out of 10 subjects said their skin looked younger after 8 weeks.

See full clinical trial

Free shipping

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?

Our pure form of retinol is formulated at an optimal 0,35%, making it suitable for beginners and more advanced retinol users while keeping it soft enough to use under the eyes.

Ask us anything

We're here to help and demystify everything about
The youth tonic.

Can I use this serum also for the eye area?

Yes, this serum is especially developed to be safe to use under the eyes. We have seen impressive results in crow's feet improvement in our clinical trials.

Is retinol safe with sun exposure?

Yes, perfectly safe. As with all active ingredients that stimulate cell turnover: your skin has a layer of dead skin cells less than usual. For some people this means a temporary increase in skin sensitivity when it comes to sun exposure. In the case of retinol it is temporary as your skin actually gets stronger after using retinol for a while. We always advice to use a daily SPF in any case if you want to achieve the goals related to retinol.

When should I apply retinol?

After the build up, you can use it every evening.

Loved by many

Trustpilot reviews Routinely

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.