★★★★★

More than 20,000 people convinced

The first epigenetic vitamin C serum . A bioactive and highly absorbable vitamin C, which acts directly at the cellular level for optimal regeneration, without irritation.

✔ Prevention of skin aging
✔ Reduction of pigment spots
✔ Advanced antioxidant protection
✔ Intense hydration
✔ Boosts collagen
✔ Strengthening of the skin barrier

The first epigenetic vitamin C serum

Skin Diligent's Vitamin C Serum isn't just any vitamin C serum . It works by targeting the expression of genes involved in skin protection and regeneration, thereby influencing the cellular mechanisms of aging. By optimizing cell strength and longevity, it delivers brighter, firmer, and better-protected skin over the long term.

Pourquoi choisir le Sérum Vitamin C Skin Diligent ?

Critères Skin Diligent Sérums classiques
Stabilité Ne s'oxyde pas Peut s’oxyder rapidement, entraînant une perte d’efficacité
Absorption Formule liposoluble, absorption optimale Formulation aqueuse, mal absorbée par la peau
Irritation Haute tolérance, adapté aux peaux sensibles Pas adapté aux peaux sensibles
Impact Épigénétique Active la réparation cellulaire et protège l’ADN cutané NA
Hydratation Renforce la barrière cutanée et hydrate la peau Non hydratant
Hyperpigmentation Cible les taches et uniformise le teint Peut colorer la peau en orange

Real results proven by clinical tests and user testing

100% found their skin more hydrated.
100%
noticed improved skin appearance .
95% noticed healthier skin.
95%
observed a more even complexion.
90%
noticed prevention of imperfections.
90%
noticed a reduction in fine lines.

28-day clinical study on 20 participants aged 18 to 60. Instrumental measurements with Corneometer CM 825 and PIE Tewameter TM30 after daily application.

They tested Skin Diligent

★★★★★

"The best vitamin C by far! I used SkinCeuticals for 3 years… until I discovered Skin Diligent. More stable, gentler, more effective for my skin."

Sophie - Verified Buyer

Why switch to a new generation of vitamin C?

Aqueous vitamin C serums can be unstable, irritating, and oxidize upon exposure to air and light.

Skin Diligent reinvents Vitamin C, with its Vitamin C Serum in Oil , with a non-oxidizing form, better absorbed and without irritation.

LE PREMIER SÉRUM ÉPIGÉNÉTIQUE À LA VITAMINE C

Des actifs choisis pour leur action ciblée sur les cellules

Ascorbyl Tetraisopalmitate

Ascorbyl Tetraisopalmitate

Une forme stabilisée et liposoluble de Vitamine C , avec 65 ans d’efficacité prouvée, qui booste l’éclat, stimule le collagène et protège la peau.

Omégas 3, 6 & 9

Omégas 3 & 6

Acides gras essentiels qui renforcent la barrière cutanée, hydratent intensément et améliorent l'élasticité.

Triple Antioxydant

Triple Antioxydant

Un système antioxydant de vitamine C, E et d'acide punicique réduisant l'inflammation, neutralisant le stress oxydatif et éliminant de manière significative les radicaux libres.

Bouclier Apaisant & Réparateur

Bouclier Apaisant & Réparateur

Résine d’Amazonie aux propriétés apaisantes et réparatrices pour une peau protégée.

FAQ

What makes Skin Diligent Vitamin C Serum unique?

Our serum uses an advanced fat-soluble form of vitamin C (Ascorbyl Tetraisopalmitate), known for its superior stability, optimal absorption rate, and ability to penetrate deeply without requiring an acidic pH. Combined with biomimetic actives, it maximizes antioxidant efficacy and collagen stimulation without causing irritation or premature oxidation.

I've used high-end Vitamin C serums before. Will I see a difference?

Yes. Unlike traditional forms of water-soluble vitamin C (such as ascorbic acid), our serum ensures more efficient cellular absorption and better skin tolerance. Many users who have tried other products have noticed the difference.

Is it suitable for sensitive skin?

Yes, our epigenetic formulation was developed to deliver high efficacy while respecting skin integrity. Ascorbyl Tetraisopalmitate does not require an acidic environment to be activated, reducing the risk of irritation often associated with traditional Vitamin C. In addition, our complex of natural omegas and antioxidants strengthens the skin barrier, protecting the skin from environmental aggressors while soothing sensitivities.

What are the benefits of vitamin C for the skin?

Vitamin C is a powerful antioxidant that protects the skin from oxidative stress caused by free radicals and external aggressions (UV rays, pollution). It stimulates collagen production, thus improving the skin's firmness and elasticity. It also helps reduce pigmentation spots, even out skin tone, and boost radiance.

Who is Skin Diligent?

The first epigenetic laboratory dedicated to skin care, specializing in cellular health and longevity.

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