What it is: A potent-yet-gentle serum with 20 percent stabilized vitamin C and phyto exosomes for visible brightening, skin smoothing, and wrinkle targeting.Skin Type: Normal, Combination, and OilySkincare Concerns: Dark Spots, Dullness, and Uneven Skin ToneFormulation: SerumHighlighted Ingredients:- Stabilized Vitamin C (Tetrahexyldecyl Ascorbate) 20%: A potent, gentle vitamin C for visible brightening and dark-spot reduction.- Phyto Exosomes: Plant derived to soothe and support the skin barrier.- Acetyl Zingerone: Enhances vitamin C benefits and protects against environmental stressors.Ingredient Callouts: Contains less than one percent synthetic fragrance.What Else You Need to Know: Clinically shown to visibly brighten skin for a radiant, luminous complexion, C-Tetra Advanced also shields the skin from daily environmental aggressors and defends against the visible effects of premature skin aging. This formula primes the skin while improving skin texture for a soft, polished finish.Clinical Results: Proven via independent clinical study conducted over 4 weeks on 32 participants: - 77% increase in visible skin brighteningProven via independent clinical and consumer studies conducted over 4 weeks on 144 participants:- 1 week to skin looking more youthful with visibly improved wrinkles Proven via independent clinical study conducted over 4 weeks on 31 participants:- 1 week to visibly smoother skin texture
International delivery
Shipping calculated at checkout
Returns & exchanges
Within 30 days of delivery
What it is: A potent-yet-gentle serum with 20 percent stabilized vitamin C and phyto exosomes for visible brightening, skin smoothing, and wrinkle targeting.Skin Type: Normal, Combination, and OilySkincare Concerns: Dark Spots, Dullness, and Uneven Skin ToneFormulation: SerumHighlighted Ingredients:- Stabilized Vitamin C (Tetrahexyldecyl Ascorbate) 20%: A potent, gentle vitamin C for visible brightening and dark-spot reduction.- Phyto Exosomes: Plant derived to soothe and support the skin barrier.- Acetyl Zingerone: Enhances vitamin C benefits and protects against environmental stressors.Ingredient Callouts: Contains less than one percent synthetic fragrance.What Else You Need to Know: Clinically shown to visibly brighten skin for a radiant, luminous complexion, C-Tetra Advanced also shields the skin from daily environmental aggressors and defends against the visible effects of premature skin aging. This formula primes the skin while improving skin texture for a soft, polished finish.Clinical Results: Proven via independent clinical study conducted over 4 weeks on 32 participants: - 77% increase in visible skin brighteningProven via independent clinical and consumer studies conducted over 4 weeks on 144 participants:- 1 week to skin looking more youthful with visibly improved wrinkles Proven via independent clinical study conducted over 4 weeks on 31 participants:- 1 week to visibly smoother skin texture
[I received this product in exchange for my honest review] I really like this vitamin c because it leaves my skin looking radiant, it doesn’t feel heavy, and in the time I’ve been using it, I feel like my skin has improved quite a bit. I definitely recommend it.
[I received this product in exchange for my honest review] Blends in well, has a light citrus scent. It absorbs well and goes easily under other products. Best of all, it didn’t break me out or make my skin orange. The dropper is also great. I look forward to more mornings with it in my routine.
[I received this product in exchange for my honest review] I was super impressed with this formula. I am not currently using a vitamin C prior to trying this product so I cannot really compare it to other vitamin C.. when I ran the ingredients it had zero pork clocking ingredients, which is extremely important to me as an acne, prone girl. It did seem to help with the post inflammatory marks from my acne while not creating new ones. I also liked how hydrating it was. It absorbs perfectly and does not leave a residue stickiness or film on the skin. _ sometimes I use it at night and more often. I use it during the day underneath my sunscreen. Other things I liked is that it seemed to play well with other products and did not make them pill off. I also appreciate the dark bottle since vitamin C is a very unstable ingredient. I had zero irritation from this product and in just one use, I saw a little bit of a difference in my face. I also like the fact that it is a pump because I don’t want bacteria getting in the product contributing to acne or breaking down the ingredients.
[I received this product in exchange for my honest review] I’ve been using this product for about a month now and I really like it! I appreciate that it comes in an airless pump for easier dispensing. Additionally, the serum is very lightweight and absorbs easily. There is a pleasantly mild orange scent so if you are sensitive to scents, keep that in mind (I like it though). I haven’t noticed any allergic reactions and my skin seems brighter! Overall a nice product!
[I received this product in exchange for my honest review] Medik8 C-tetra advanced 20% vitamin C gel serum brightens and it’s an age defying serum. It smells like citrus. My skin wasn’t tight at all. I had a nice shine on my skin once I began using the product. The irritation was none and I wore out in the daytime. usually I’ll wear vitamin C at night, but this is sensitive enough to where you can wear day and night. I stopped using other serums. I only use this one. I do recommend the c tetra advanced serum along with their other products !
[I received this product in exchange for my honest review] I really like the formula and how moisturizing this feels on the skin. This is after me using this for about 3 weeks. Dark spots are lighter, and skin tone overall is way more even. Don't mind the pimple, lol.
I have NEVER left a review.. this stuff is life changing. Along with the liquid peptides advanced. My skin has NEVER looked this good!!!! I have combo skin with big pores and closed comedones. This has been game changing. Will never go back!!!
I love this product it makes my skin so moisturized and feel so great ! Not sticky and gives my skin a beautiful glow definitely worth getting
[I received this product in exchange for my honest review] I’ve been looking for a good vitamin C products to help with sun spots on my face. This worked really well and I definitely see improvement after using it for seven days. Despite containing 20% vitamin C is pretty lightweight and feels nice on my skin.
The Medik8 C Tetra Advanced has been such an easy addition to my morning routine. Despite containing 20% vitamin C, it feels lightweight and comfortable on my skin without causing the stinging or dryness I’ve experienced with other strong formula's. It absorbs beautifully, layers well under moisturizer and sunscreen, and doesn’t leave a sticky residue… With consistent use, my complexion looks brighter, smoother, and more refreshed. I especially appreciate that it gives my skin a healthy glow without making it look oily. The packaging also feels luxurious and helps keep the formula protected. A sophisticated vitamin C serum that delivers radiance while still feeling gentle enough for everyday use
