Youth Intensive Crème

The Youth Intensive Crème is iS Clinical’s statement piece. It is the product that says, in the language of biochemistry, ‘we are going to address every pathway of skin aging we know about, and we are going to do it in one formula.’ Whether you find that ambition inspiring or excessive depends on your relationship with your bathroom shelf and your bank account.

The formula reads like a dermatology textbook’s table of contents. Copper peptides for collagen synthesis and tissue remodeling. Superoxide dismutase for enzymatic antioxidant defense. Stabilized vitamin C (tetrahexyldecyl ascorbate) for brightness and photoprotection. Centella triterpenoids for anti-inflammatory support. Botanical AHAs from five sources for surface renewal. Soy isoflavones for estrogen-mimicking skin-thickening effects. Licorice root for brightening. Retinyl palmitate for gentle vitamin A activity. It is, by any measure, one of the most ingredient-dense moisturizers on the market.

The copper peptide system is the formula’s anchor. Tripeptide-1 (the GHK fragment) is listed ninth in the INCI, and copper lysinate/prolinate appears near the end — together they provide the signaling molecule and the copper ion that work in concert to stimulate collagen, elastin, and glycosaminoglycan production. This is the same GHK peptide used across iS Clinical’s range, but here it operates within a richer matrix of complementary actives.

Superoxide dismutase provides antioxidant protection through a fundamentally different mechanism than vitamins C and E. As an enzyme, it catalytically converts superoxide radicals — it does not get ‘used up’ in the way stoichiometric antioxidants do. In a formula that already contains vitamin C (stabilized) and vitamin E, the addition of SOD creates a genuinely layered antioxidant network that addresses free radical damage from multiple angles.

The botanical AHA blend — drawing from sugar cane, bilberry, sugar maple, lemon, and orange — provides gentle resurfacing that keeps the skin surface renewed while the peptides work on deeper structural repair. This combination of surface exfoliation with deeper collagen stimulation creates a synergy where results build on each other: fresh surface cells better display the improved collagen beneath.

On the skin, this is a rich cream. Not heavy in the way petroleum-based products feel, but substantial — it coats, it nourishes, it settles into a velvety layer that makes dry skin immediately comfortable. There is a natural scent from the chamomile and citrus oils — pleasant if you like botanical aromas, potentially irritating if you have sensitive skin. This is the formula’s most divisive choice: essential oils in a clinical product. They serve functional purposes (the chamomile provides anti-inflammatory activity), but they also limit the product’s suitability for reactive skin.

Results follow the dual-speed pattern of AHA plus peptide formulas. Within the first two to three weeks, the exfoliating botanicals produce smoother texture and improved brightness. By eight to twelve weeks, the peptide and vitamin C activity shows up as improved firmness, softer fine lines, and a healthier overall skin quality. The cream works particularly well in fall and winter when dry skin needs both active treatment and protective moisture.

The price demands honest discussion. At $256 for 1.7 ounces, this is one of the most expensive moisturizers in the professional skincare market. A 3.5 oz size at $420 offers better per-ounce value for committed users. The counterargument — and it has some merit — is that this single product replaces what might otherwise require separate peptide, AHA, vitamin C, and antioxidant products. If your current anti-aging routine involves four or five separate products, the consolidation argument becomes more financially compelling.

But let us be candid: you can build an effective anti-aging routine for considerably less. What you are paying for here is the convenience of consolidation, the pharmaceutical-grade sourcing, and the specific combination of actives — particularly the superoxide dismutase and copper peptide system — that few other products replicate. Whether that justifies the premium is a personal calculation, not a dermatological one.