C-Tetra™ (Travel Size)
C-Tetra™ (Travel Size) Original price was: $17.00.Current price is: $5.10.
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C-Tetra™ Luxe (Travel Size)
C-Tetra™ Luxe (Travel Size) Original price was: $25.00.Current price is: $7.50.
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C-Tetra™

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Original price was: $53.00.Current price is: $15.90.

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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

Clinically proven to brighten skin and restore visible skin radiance.*

Formulated with 7% tetrahexyldecyl ascorbate, a stabilized, low-irritation form of vitamin C, this lightweight serum targets visibly uneven skin tone and the look of fine lines. Enhanced with soothing centella asiatica to ensure a comfortable application for even the most sensitive skin.

Further fortified with vitamin E, this antioxidant powerhouse also protects the skin against the aging and damaging effects of free radicals for a more youthful and healthy-looking complexion overall. Suitable for those who are new to vitamin C, or those with sensitive skin.

 

Additional information
SizeC-Tetra™
Key Benefits

Boost Skin Radiance

89% agree their skin has a visible healthy glow in 7 days**

Brighter, More Even Complexion

Clinically proven to visibly brighten and improve eveness of skin tone*

Gentle On Skin

95% agreed C-Tetra is gentle on their skin**. Rich in soothing properties, it contains centella asiatica to help comfort and support all skin types, including sensitive.

Lightweight Nourishment

This jojoba (pronounced 'huh-hoh-ba') seed oil-based formula delivers effective yet non-greasy nourishment for visibly softer and comforted skin.

Proven Results
Before
After
Before
After
4 weeks to visibly brighten skin*
4 weeks to visibly improve evenness of skin tone*
4 weeks to visibly improve skin radiance*
*Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin.
How to Use

First-Time Use

If you're new to C-Tetra 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 4 drops across the face, neck and décolletage.

Step 2

Leave to absorb before applying a sunscreen.

Uses per bottle

200
Key Ingredients

7% Stabilized Vitamin C (tetrahexyldecyl ascorbate)

A low-irritation form of vitamin C that delivers exceptional antioxidant protection against harmful free radical damage while brightening and supporting the skin's natural collagen levels for a visibly even, more youthful-looking complexion.

Vitamin E

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

Centella Asiatica

Rich in soothing properties, centella asiatica helps to soothe and support all skin types, especially sensitive skins. .

Centella Asiatica

Rich in soothing properties, centella asiatica helps to soothe and support all skin types, especially sensitive skins. .

Full List of Ingredients
C-Tetra™
Lipid 7% Vitamin C Radiance Serum

Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, 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.
  • No artificial fragrance
  • No synthetic colors
  • Paraben free
  • Certified by the vegan society

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