Free shipping on orders over €50*
Free shipping on orders over €50*·Natural & organic cosmetics·Shipped within 24-48 h

Vitamin C Brightening Serum

4.7 / 5 11 reviews
19.99 €

Discover our radiant Vitamin C serum, a powerful anti-ageing treatment that is 98.8% natural. Enriched with antioxidant actives, it effectively targets the signs of ageing. For a complete beauty ritual, pair it with our skincare oils and our Marine Collagen. (50 ml)

Out of stock

Temporarily out of stock — we'll let you know as soon as it's back

A single message (email or WhatsApp) as soon as the product is back. Nothing else, promise.

  • Free shippingon orders of €50 or more
  • Shipped within 24-48 hcarefully prepared by our team
  • 100% secure paymentyour data is protected
  • Natural & organic cosmeticsclean & gentle formulas
Your high-performance anti-ageing ally for radiant skin

Our Radiance Vitamin C Serum is a true concentrate of anti-ageing actives that works deep down for visibly younger, more luminous skin. Its innovative formula, enriched with pure vitamin C and natural actives, targets the visible signs of ageing. Also discover our Collagen Serum for an extra anti-ageing boost.

Key benefits

  • Powerful anti-wrinkle action
  • Intense cell regeneration
  • Natural collagen stimulation
  • Daily antioxidant protection
  • Instant radiance for your complexion
Ingredients

Ingredients

  • • Vitamin C (derivative): anti-ageing and antioxidant action
  • • Simmondsia Chinensis seed oil: nourishing
  • • Allantoin: soothing and regenerating
  • • Xanthan gum: natural texturiser
  • • Vitamin E: antioxidant
  • • pH: 5-6 (skin-friendly)

98.8% ingredients of natural origin

Paraben-free, gluten-free

Contents: 50 ml

How to use

How to use

Beauty ritual

  • Cleanse your face with a suitable cleanser
  • Apply a few drops of serum to clean, dry skin
  • Gently massage in until fully absorbed
  • Finish with your usual moisturiser
  • In the morning, follow with sun protection

For an extra anti-ageing boost, discover our Collagen Serum.

Storage

  • Store away from heat and direct light
  • Use within 24 months of opening
  • Keep the bottle tightly closed between uses
Frequently asked questions

When will I see the first results?

The first results are visible from the very first applications, with a more radiant complexion. For optimal anti-ageing action, discover our full range of anti-ageing serums.

How can I get the most out of the serum?

For optimal results, complement it with a course of our Marine Collagen taken internally, and protect your skin from the sun every day.

Is this serum suitable for all skin types?

Yes, our formula with a skin-friendly pH is suitable for all skin types. For sensitive skin, start by applying it every other day. Also discover our other targeted serums.

Customer reviews

You must be logged in to post a review. Log in

4.7
★ ★ ★ ★ ★
11 reviews
5★
8
4★
3
3★
0
2★
0
1★
0
★ ★ ★ ★ ★
✓ Verified purchase
Murielle G. · 30 September 2026

toujours aussi bien

★ ★ ★ ★ ★
✓ Verified purchase
Jade B. · 30 June 2026

trop contente

équipe super dispo sur WhatsApp, et le sérum marche vraiment bien

★ ★ ★ ★ ★
✓ Verified purchase
Jeanne P. · 27 May 2026

Tres contente du resultat

J'utilise depuis 2 semaines maintenant, ma peau est plus lumineuse c'est clair. Mon mari m'a meme fait la remarque sans que je dise rien donc ca veut dire que ca marche vraiment

★ ★ ★ ★ ★
✓ Verified purchase
Gabriele K. · 25 May 2026

super zufrieden 🥰

★ ★ ★ ★ ★
✓ Verified purchase
Juliette C. · 23 May 2026

Contente du résultat

je l'utilise le matin avant ma crème, ça illumine vraiment bien. La texture est légère et ça sent bon ❤️

★ ★ ★ ★ ★
✓ Verified purchase
Damien R. · 18 May 2026

Cool le sérum

J'ai échangé sur WhatsApp avant de commander, franchement l'équipe est réactive et le sérum fait bien le job.

★ ★ ★ ★ ★
✓ Verified purchase
Lola N. · 17 May 2026

Pratique après le sport

J'applique direct après ma douche, ça pénètre vite et ma peau est nickel.

★ ★ ★ ★ ★
✓ Verified purchase
Eva L. · 13 January 2025

Vraiment un super produit ! Il n'est pas gras du tout, il s'applique facilement, illumine le teint et garde la peau éclatante. En bonus, il aide à réduire les imperfections. Un sérum vitamine C au top !

★ ★ ★ ★ ★
✓ Verified purchase
kawtar A. · 09 January 2025

J’ai adoré ces produits, ils sont vraiment top ! Leur qualité est incroyable, et en plus, ils respectent parfaitement une approche naturelle. Je les recommande à 100 % pour prendre soin de soi tout en douceur.

★ ★ ★ ★ ★
✓ Verified purchase
virginie V. · 08 January 2025

Ce sérum est vraiment bien et on voit directement l'effet eclant

★ ★ ★ ★ ★
✓ Verified purchase
laetitia D. · 04 November 2024

je kiffe

J'ai trop kiffé le sérum à la vitamine C ! Franchement, ma peau est super lumineuse et douce maintenant. Je vois grave la différence. Je le recommande à 100% !

BYOU Cosmétiques
We reply within minutes
Hello! A question about our products, your order or delivery? Write to us!

Join the house

New arrivals, beauty rituals and early access to offers — straight to your inbox.

Free sign-up · Unsubscribe in one click · No spam.