C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum Original price was: $78.00.Current price is: $23.40.
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C-Tetra™ Luxe (Travel Size)
C-Tetra™ Luxe (Travel Size) Original price was: $25.00.Current price is: $7.50.
-70%
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C-Tetra™ Luxe
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C-Tetra™ Luxe

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Original price was: $70.00.Current price is: $21.00.

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Free Shipping

Free shipping on all orders & Duties Covered. Ships to all US states, orders ship within 1–3 business days.

We are pleased to offer Free Worldwide Shipping on all orders, delivering to all countries and regions supported by our logistics network. There are no restrictions on order quantity, parcel size, or shipment weight — every order ships at no cost to you. In addition, all customs duties, import taxes, and government-imposed fees associated with your shipment will be fully covered by us, ensuring you will not incur any extra charges upon delivery.

Please note that delivery times may vary due to local customs procedures and carrier conditions, but your shipping and customs costs will remain completely free under this policy.

Free Returns
Free Shipping

We provide a secure and reliable Free Returns service for all customers. Items that remain unused and unopened may be returned within 60 days for a full refund.

All return shipping expenses, including customs-related fees, are fully covered by us.

Refund processing will be completed within 4 weeks from the date the return shipment is sent, regardless of whether the package has arrived at our facility. In general, refunds are finalized significantly earlier, ensuring a smooth and dependable experience.

Description

Supercharge your skin’s radiance each morning with C-Tetra Luxe, a vitamin C serum for your face clinically proven to reduce the appearance of wrinkles and dark spots in just 4 weeks.* It also works to boost visible radiance while supporting the skin barrier. Featuring twice the amount of vitamin C (14%) of our original C-Tetra serum, C-Tetra Luxe is ideal for those looking for enhanced skin radiance and antioxidant protection alongside deep nourishment.

The velvety-soft serum is formulated with a stabilized (and therefore very potent) form of vitamin C called tetrahexyldecyl ascorbate, which delivers proven results after just 1 use*; all with a gentle, nourishing experience for your skin.

Additional information
SizeC-Tetra™ Luxe
Key Benefits

Instant Skin Youthfulness

Boosted with optimized red ginseng for proven skin-brightening and youth-boosting power.

Total Skin Nourishment

Enhanced with squalane and vitamin F for deep moisturization and clinically proven skin barrier support.

Dark Spot Reduction

Delivers powerful, clinically proven action on the appearance of dark spots.

Proven Results
BEFORE
AFTER 8 WEEKS
BEFORE
AFTER 8 WEEKS
1 hour to visibly brighter, more youthful-looking skin*
7 days to improved skin radiance*
81% agree visible dark spots had reduced in just 4 weeks*
94% noticed smoother and softer skin after just 1 use*
86% reported it was the best vitamin C serum they had ever used*
*Proven via independent clinical study on C-Tetra Luxe conducted over 4 weeks on 36 participants
How to Use

First-Time Use

If you're new to C-Tetra Luxe we recommend a patch test at least 24 hours before first use. Learn how to patch test here.

Step 1

After cleansing in the morning, massage 6 drops of C-Tetra Luxe across the face, neck and décolletage.

Step 2

Leave to absorb before applying a moisturizer and sunscreen.

Uses per bottle

200
Key Ingredients

14% Stabilized Vitamin C (tetrahexyldecyl ascorbate)

A low-irritation form of antioxidant vitamin C that works to keep the appearance of fine lines and wrinkles at bay. It also helps to visibly brighten and even the skin tone for visible dark spot reduction.

Squalane

An almost skin-identical lipid, squalane helps to replenish the skin’s natural moisture barrier while deeply moisturizing the complexion.

Maracuja (pronounced 'marra-KU-ja') Oil

Naturally rich in nutrients and fatty acids, maracuja oil deeply nourishes your skin.

Optimized Red Ginseng

Boosts the serum’s visible brightening powers for more youthful-looking skin overall.

Maracuja (pronounced 'marra-KU-ja') Oil

Naturally rich in nutrients and fatty acids, maracuja oil deeply nourishes your skin.

Optimized Red Ginseng

Boosts the serum’s visible brightening powers for more youthful-looking skin overall.

Vitamin E

A powerful antioxidant, vitamin E works to deeply nourish and soften the complexion.

Full List of Ingredients
C-Tetra™ Luxe
Lipid 14% Vitamin C Enhanced Radiance Serum

Squalane, Simmondsia Chinensis (Jojoba) Seed Oil, Tetrahexyldecyl Ascorbate, Dimethicone, Candida Bombicola/Glucose/Methyl Rapeseedate Ferment, Citrus Grandis (Grapefruit) Peel Oil, Ethyl Linoleate, Passiflora Edulis Seed Oil, Tocopheryl Acetate, Helianthus Annuus (Sunflower) Seed Oil, Olea Europaea (Olive) Fruit Oil, Panax Ginseng Root Oil, Prunus Amygdalus (Sweet Almond) Dulcis Oil, Prunus Armeniaca (Apricot) Kernel Oil, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.

*Although we try our best to ensure this list of ingredients is accurate there may be product upgrades from time to time, or slight variants between different regions based on local laws, meaning the only definitive ingredient list is that which is printed on the product packaging.
  • Dermatologically tested
  • Clinically proven formula
  • No artifical fragrance
  • No synthetic colors
  • Paraben free
  • Alcohol free
  • Askmen grooming awards best vitamin c

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