Medik8 C-Tetra Advanced Review
In today’s post, I’d like to discuss the Medik8 C-Tetra Advanced, an intensive vitamin C serum designed to smooth and brighten the skin. Let’s get into its overall performance and learn more about this product.
The formula contains 20% THD (Tetrahexyldecyl Ascorbate), a stable, oil-soluble form of vitamin C. This derivative is gentler on the skin and less likely to cause irritation, though slightly less potent than L-ascorbic acid. Vitamin C provides multiple benefits, helping to even out skin tone, reduce fine lines and wrinkles, and target dullness, dark spots, and discolouration, while instantly enhancing radiance. It also delivers antioxidant protection and supports collagen production.
It also contains green tea phyto exosomes that deliver proteins, lipids, and messenger molecules to skin cells, helping to boost the skin’s natural repair processes, protect the skin barrier, improve resilience, and support a healthier, more radiant complexion. A blend of acetyl glucosamine (NAG), tocopherol, oat kernel extract, and acetyl zingerone provides antioxidant protection and enhances the effects of vitamin C. Glycerin, acetyl glucosamine, and hyaluronic acid hydrate the skin, while acetyl glucosamine (NAG), squalane, and oat kernel extract support the skin’s barrier and soothe the skin.
Talking about fragrances, especially essential oils, I know many people are afraid of using cosmetics that contain “potential citrus allergens”. However, around 95–98% of people experience no issues when using skincare products with fragrance.
It has a lightweight, creamy texture and a subtle orangey smell. It glides on smoothly and absorbs quickly, leaving no greasy or sticky residue. The serum sits well under makeup and doesn’t pill.
I’m a huge fan of vitamin C. For reference, I have thin, combination skin that doesn’t tolerate L-ascorbic acid. The Medik8 C-Tetra Advanced contains a stable vitamin C derivative that’s less likely to irritate the skin. I usually avoid high concentrations of vitamin C, since 10–15% works well for my skin without causing any adverse reactions. Thankfully, this serum doesn’t cause breakouts or irritation. It’s both gentle and effective.
I’ve been using the Medik8 C-Tetra Advanced almost every morning for about two months, and I’m really impressed. I’ve noticed a difference after just a week. Without changing anything else in my routine, my skin has become brighter, healthier, and more even. Now it looks firmer and plumper, while also feeling soft and hydrated. Although I don’t struggle with hyperpigmentation or scars, this serum has helped fade my post-acne marks and keeps my skin clear.
Overall, I’ve had a great experience with the Medik8 C-Tetra Advanced. I genuinely enjoy using this product and can recommend it to anyone looking to upgrade their vitamin C routine.
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