Medik8 C-Tetra 30ml
Medik8 C-Tetra 30ml
4.67 / 5.0
(3) 3 total reviews
pay in 4 installments of $16.44
In stock
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The Medik8 C-Tetra Serum delivers powerful antioxidant protection against environmental stressors while minimising the look of uneven skin tone for a visibly brighter finish.
Infused with a stable form of vitamin C, the lightweight serum helps to reduce the appearance of unwanted pigmentation. Vitamin E enhances the formula to nourish the skin with a potent burst of moisture, subsequently plumping the appearance of fine lines for a smoother-looking finish. The brightening serum leaves skin looking more radiant and supple in just seven days*.
*Proven via independent consumer study on C-Tetra conducted over 4 weeks on 52 participants with sensitive skin
Proven Results:
- After seven days the skin appears more radiant*
- After seven days the skin is visibly brighter and smoother *
- 96% of sensitive skin types agreed C-Tetra was gentle on the skin*
- After four weeks skin looks visibly reduced fine lines and dark spots*
- 90% agree skin feels instantly softer*
*Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin.



Product Information
Directions
Ingredients
Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
,Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
,Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
Shipping
Australian Orders
Australian OrdersAustralia Post Standard Delivery* (2-7 Business Days
Orders under $50-$7.95
Orders over $50 Free
Australia Post Express Delivery** (1-3 Business Days)
Orders under $50 $9.90
Orders over $50 $5.95
Postage Insurance$2.95
Complete protection for loss or damage during transit*
Returns & Refunds
We accept returns on unused, unopened items within 30 days of delivery.
Faulty, damaged or reaction-related returns may be eligible for a refund, exchange or store credit — conditions apply.
Please note:
- Products must be in original condition
- Return shipping costs are the customer’s responsibility (unless the item is faulty or sent in error)
- Makeup and fragrance are not eligible for change-of-mind returns
Contact us at customerservice@ry.com.au to request a return.
View our full Returns & Refunds Policy Here

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Skin looks clearer and brighter after using this product every day, it's not heavy and great for aging skin.
Wish I had known about Medik8 years ago!
I wish I had found this product 20 years ago. I apply this under my moisturiser and it has been the best product so far that really hydrates my skin as my face used to be quite dry.
I had definite results from this vitamin C! My pigmentation has begun to diminish and my overall skin tone has become more even .