C-Tetra Advanced — 30 ml | Medik8

Take your antioxidant routine to the next level with C-Tetra Advanced , the most powerful and skin-friendly vitamin C serum: visible radiance, firmness, and youthfulness in just 7 days.

C-Tetra Advanced is Medik8 's next-generation vitamin C serum , designed to deliver intense radiance and visible clinical results without compromising the skin barrier.
Formulated with 20% stabilized vitamin C (tetrahexyldecyl ascorbate) , this advanced serum brightens, firms, and revitalizes skin in as little as 7 days , while effectively combating visible signs of aging.
Its Barrier Support System™ technology ensures that the formula is as effective as it is gentle , achieving brighter, more even and younger-looking skin without irritation.
Enriched with phytoexosomes , which reinforce the skin's natural barrier, and acetyl zingerone , an intelligent antioxidant that neutralizes the most aggressive free radicals, C-Tetra Advanced acts as a 360º protective shield against oxidative stress, pollution and blue light.
With a light, fast-absorbing gel texture, it leaves skin hydrated and radiant, without any greasy residue.
Ideal for all skin types, even the most sensitive, this serum is the perfect ally for those seeking clinical potency with maximum tolerance .

Visible results:

• In 7 days , brighter and softer skin.

• In 4 weeks , clinically improved firmness and elasticity.

Size: 30 ml
Skin type: All skin types (even sensitive)
Recommended Use: Apply in the morning after cleansing your face. Dispense 2–3 pumps or drops onto your face, neck, and décolletage. Massage until completely absorbed and finish with moisturizer and sunscreen.

✨ Key benefits

1. Intense and long-lasting luminosity from the first week.
2. Smooths fine lines and visible wrinkles .
3. Strengthens the skin barrier with protective phytoexosomes.
4. Protects against free radicals, blue light and pollution .
5. Moisturizes and softens without leaving a greasy feeling.
6. Clinically proven results in firmness and texture.

🧪 Key ingredients

1. Vitamin C (Tetrahexyldecyl Ascorbate, 20%): highly stable fat-soluble antioxidant, stimulates collagen, provides luminosity and uniformity.
2. Phytoexosomes: Botanical complexes that strengthen the skin barrier and improve skin resilience.
3. Acetyl zingerone: a smart antioxidant that neutralizes free radicals and protects against environmental stress.
4. Vitamin E: co-antioxidant that enhances the effectiveness of vitamin C and provides hydration.
5. Hyaluronic Acid: Deep moisturizer that improves elasticity and fills in dehydration lines.

1. 💡 Good to know

1. Light gel texture, perfect for daily use.

2. No artificial fragrances , vegan and cruelty-free .

3. 0% irritation reported (dermatologically tested).

4. Compatible with CSA philosophy (C + SPF / A).

5. Clinically proven : visible improvement in 7 days.

6. Ideal for advanced vitamin C users.