iS Clinical

iS Clinical Youth Serum



YOUTH SERUM is designed to give skin the best of both worlds: immediate and long-term visible results. Immediate results come from advanced technologies that support healthy skin structures and instantly diminish the appearance of fine lines for a visibly firmed complexion. Meanwhile, YOUTH SERUM’s safe, bio-identical growth factors help to visibly reduce fine lines and wrinkles long-term. iS Clinical's patented Extremozyme® technology combined with a powerful blend of antioxidants, provides support against environmental aggressors. The result is a more youthful, vibrant, and resilient complexion.

• Instantly smoothes the skin
• Visibly improves the signs of aging.
• Contains safe growth factors that help improve the feel of skin firmness and elasticity
• Helps protect skin from environmental agressors with Extremozyme® technology
• Excellent for use under makeup
• Paraben-free


Ideal For: All skin types

Size: 1 fl oz.

How to Use

Apply a small amount to clean skin, smoothing around eyes, face and/or neck.


Water, PVP, Caffeine, Glycerin, Disodium EDTA, Hydroxyethylcellulose, Ceratonia Siliqua (Locust Bean) Gum, Hydrolyzed Casein, Pseudoalteromonas Ferment Extract, Hydrolyzed Wheat Protein, Hydrolyzed Soy Protein, Tripeptide-10 Citrulline, Tripeptide-1, Lecithin, Butylene Glycol, Xanthan Gum, Carbomer, Triethanolamine, Caprylyl Glycol, Phenoxyethanol, Ahnfeltia Concinna Extract, Beta Vulgaris (Beet) Root Extract [Extrait De Racine De Betterave], Haberlea Rhodopensis Leaf Extract, Faex (Yeast) Extract [Extrait De Levure], Acetyl Tyrosine, Proline, Hydrolyzed Vegetable Protein, AdenosineTriphosphate, Ergothioneine, Saccharide Isomerate, Hydrolyzed Wheat Protein/PVP Crosspolymer, VP/Dimethylaminoethylmethacrylate Copolymer, Phospholipids, Tocopheryl Acetate, Retinyl Palmitate, Ascorbyl Palmitate, Asiaticoside, Asiatic Acid, Madecassic Acid, 1,2-Hexanediol.

Customer Reviews

Based on 4 reviews
Kitty O.
iS Clinical Youth Serum

I love this serum! A good trick is to make sure your face is a little damp before apply so it’s not so tacky. Absorbs really well.

Instant tightening

I like the instant tightening effect that this transparent gel serum provides. Like a mini facelift type feeling to it. It layers well with my other skincare. It’s very lightweight and doesn’t clog my pores. You definitely need to add a moisturizer on top though because I don’t find this hydrating enough in its own.

Notice a Difference

This serum makes a noticeable difference when used regularly, which is high praise from “good in theory, underwhelming in practice” me. My face feels firmer and my skin is clearer, smoother, and more even. Can’t comment much on fine lines/wrinkles. Other formulas with tripeptide-1 haven’t had the same effect, so thanks ultra-powered extremozymes or other magic. It’s a little thick for the dropper applicator, but applies smoothly and doesn’t feel too wasteful if dotted over the face before rubbing/patting in.

feels nice

Maybe too early to review this properly but first impressions after a week of use is that this serum seems to "depuff" my face? Maybe it's the caffeine in it. It soaks in really quickly and my skin feels good after that. Hoping to see more benefits long term from the growth factors!