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Phare by Dr. Laura: Luxury, Science-Backed Skincare for Real Results
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C-Tetra Advanced

C-Tetra Advanced

By Medik8

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C-Tetra Advanced

€85,00 Sale • Save
1 review

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A 20% stabilized vitamin C gel-serum with phyto-exosomes and acetyl zingerone for accelerated brightness, antioxidant defence, and barrier reinforcement.


  • Tetrahexyldecyl Ascorbate (20%)
  • Glycerin
  • Camellia Sinensis (Green Tea)
  • All Skin Types


Medik8 Crystal Retinal 10

Dr. Laura loves this with

Crystal Retinal 10™

€110,00

Quick Buy  
Medik8 Advanced Night Restore

Dr. Laura loves this with

Advanced Night Restore

€72,00

Quick Buy  
Free shipping over €199
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DR LAURA'S GUIDE TO C-Tetra Advanced

Think of this as your daily glow serum—20% THDA Vitamin C brightens, exosomes support your barrier, and it layers beautifully under SPF without shifting makeup.

  • Medik8 C-Tetra® Advanced is a high-strength 20% vitamin C serum that brightens, firms, and protects skin from daily environmental stress. Formulated with stable tetrahexyldecyl ascorbate, it delivers deep antioxidant support without irritation. Added phyto-exosomes, acetyl zingerone, and squalane help hydrate, soothe, and strengthen the skin barrier. Lightweight and non-greasy, it’s ideal for all skin types—even sensitive.

  • - Dramatic, clinically proven skin brightening

    - Antioxidant protection against pollution

    - Visibly smooths fine lines

    - Strengthens skin barrier integrity

    - Lightweight, non-greasy gel texture

  • Apply 2–3 pumps of gel-serum onto cleansed face, neck, and décolletage in the morning, then follow with moisturiser and SPF

  • Aqua (Water), Tetrahexyldecyl Ascorbate, Isododecane, Propanediol, Acetyl Glucosamine, Squalane, Tocopherol, Acetyl Zingerone, Camellia Sinensis (Green Tea) Leaf Vesicles, Hydroxyacetophenone, Sodium Hyaluronate, Cellulose, Avena Sativa (Oat) Kernel Extract, Glycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Sucrose Stearate, Tetrasodium Glutamate Diacetate, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Sodium Benzoate, Cellulose Gum, 1,2-Hexanediol, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Phenoxyethanol, Citral, Linalool, Limonene.

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Customer Reviews

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Patricia B.
Age: 45-54
Skin Type: Combination, Sensitive
Skin Concern: Dullness, Fine Lines & Wrinkles
Love this product

Have always been vey sensitive to vitamin c on my skin. This was recommended to me by Dr Laura. As always her guidance was excellent. Love this product, would highly recommend.

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