iS Clinical's most ambitious moisturizer throws nearly every anti-aging strategy into a single luxurious jar — copper peptides, superoxide dismutase, stabilized vitamin C, centella triterpenoids, botanical AHAs, and soy isoflavones. It is a formulation tour de force that delivers real results for aging skin, tempered only by its eye-watering price and citrus essential oils that exclude sensitive types.
Youth Intensive Crème
iS Clinical's most ambitious moisturizer throws nearly every anti-aging strategy into a single luxurious jar — copper peptides, superoxide dismutase, stabilized vitamin C, centella triterpenoids, botanical AHAs, and soy isoflavones. It is a formulation tour de force that delivers real results for aging skin, tempered only by its eye-watering price and citrus essential oils that exclude sensitive types.
Score Breakdown
Where this product gains points and where it loses them — broken down across the four scoring pillars.
An extraordinarily complex formula with copper peptides, superoxide dismutase, stabilized vitamin C, centella triterpenoids, botanical AHAs, and a full vitamin complex. The $256 price tag is the primary limiting factor, along with citrus essential oils that reduce suitability for sensitive skin.
Pros & Cons
- ✓Extraordinarily comprehensive formula addressing collagen, antioxidant, exfoliation, and brightening pathways simultaneously
- ✓Copper peptide system with GHK-fragment and copper lysinate for targeted collagen remodeling
- ✓Superoxide dismutase provides catalytic antioxidant protection that vitamins alone cannot match
- ✓Stabilized vitamin C offers superior penetration and shelf stability
- ✓Five-source botanical AHA blend provides gentle surface renewal
- ✓Rich yet absorbs well on dry and aging skin
- ✓Centella triterpenoids add anti-inflammatory support
- ✗At $256 for 1.7 oz, one of the most expensive moisturizers on the market
- ✗Contains citrus essential oils that can irritate sensitive skin
- ✗Too rich for oily skin types
- ✗Jar packaging exposes formula to air
- ✗Contains soy isoflavones — allergen concern
- ✗Not fragrance-free despite clinical positioning
Full Review
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.
Formula
Key Ingredients
The hero actives that drive this product's performance.
| Ingredient | Function | Evidence |
|---|---|---|
| Tripeptide-1 (GHK Copper Peptide) | The formula's central anti-aging active — the GHK peptide fragment, reinforced by copper lysinate/prolinate deeper in the INCI list, stimulates collagen and elastin synthesis while promoting tissue remodeling. | promising |
| Hyaluronic Acid | Listed second in the formula, providing deep hydration at significant concentration — the full-weight hyaluronic acid binds moisture at both the surface and dermal levels. | well-established |
| Tetrahexyldecyl Ascorbate (Vitamin C) | An oil-soluble, stable form of vitamin C that penetrates more readily than L-ascorbic acid and provides antioxidant protection without pH-dependent instability. | well-established |
| Superoxide Dismutase | An enzymatic antioxidant that catalytically neutralizes superoxide radicals, providing a fundamentally different protective mechanism than vitamin-based antioxidants. | promising |
| Centella Asiatica Triterpenoids (Asiaticoside, Asiatic Acid, Madecassic Acid) | The same isolated triterpenoid trio found across iS Clinical's range, providing anti-inflammatory support and collagen stimulation that complements the copper peptide. | well-established |
| Botanical AHAs (Sugar Cane, Bilberry, Sugar Maple, Lemon, Orange) | A five-source botanical AHA blend providing gentle resurfacing within a moisturizer, promoting cell turnover to complement the peptide's deeper collagen work. | well-established |
Full INCI List
Water/Aqua/Eau, Hyaluronic Acid, Caprylic/Capric Triglyceride, Vaccinium Myrtillus Fruit/Leaf Extract, Glycerin, Urea, Glucose, Guanidine HCl, Tripeptide-1, Saccharum Officinarum (Sugar Cane) Extract, Salix Alba (Willow) Bark Extract, Glyceryl Dilaurate, Tetrahexyldecyl Ascorbate, Dimethicone, Cetyl Alcohol, Dipalmitoyl Hydroxyproline, Superoxide Dismutase, Ormenis Multicaulis Oil, Citrus Aurantium Dulcis (Orange) Peel Oil, Phospholipids, Retinyl Palmitate, Tocopheryl Acetate, Pantothenic Acid, Acer Saccharum (Sugar Maple) Extract, Citrus Aurantium Dulcis (Orange) Fruit Extract, Citrus Medica Limonum (Lemon) Fruit Extract, Asiaticoside, Asiatic Acid, Madecassic Acid, Ascorbyl Palmitate, PEG-8/SMDI Copolymer, Dipotassium Glycyrrhizate, Soy Isoflavones, Ethylbisiminomethylguaiacol Manganese Chloride, Hexylene Glycol, Ethylhexyl Palmitate, Silica Dimethyl Silylate, Butylene Glycol, Cetearyl Alcohol, Ceteareth-20, Glyceryl Stearate, PEG-100 Stearate, Carbomer, Xanthan Gum, PVP, Panthenol, Triethanolamine, Disodium EDTA, Caprylyl Glycol, Methylglucoside Phosphate, Copper Lysinate/Prolinate, 1,2-Hexanediol
Product Flags
✗ Fragrance Free✓ Alcohol Free✗ Oil Free✗ Silicone Free✓ Paraben Free✓ Sulfate Free✓ Cruelty Free✗ Vegan✗ Fungal Acne Safe
Potential Irritants
Citrus Aurantium Dulcis (Orange) Peel OilCitrus Medica Limonum (Lemon) Fruit Extract
Common Allergens
Soy IsoflavonesCitrus essential oils
Compatibility
Skin Match
Best For
Works For
Not Ideal For
Addresses These Conditions
aging dryness dullness texture sun damage
Use With Caution
Routine Step
moisturizer
Time of Day
AM & PM
Pregnancy Safe
Yes ✓
Layering Tips
Apply to clean skin as the final step before sunscreen (AM) or as the last step in your evening routine. Can be used over treatment serums.
Results Timeline
Immediate hydration and plumping on first use. Improved skin texture and brightness within 2-3 weeks. Visible improvement in firmness and fine lines at 8-12 weeks.
Pairs Well With
hyaluronic acid serumsvitamin C serumssunscreenretinoids
Sample AM Routine
- Gentle cleanser
- Vitamin C serum (optional)
- iS Clinical Youth Intensive Cream
- Sunscreen SPF 30+
Sample PM Routine
- Gentle cleanser
- Treatment serum
- iS Clinical Youth Intensive Cream
Evidence
Science & Expert Perspective
The Science
The Youth Intensive Crème's formulation is anchored by the GHK copper peptide system. Research published in BioMed Research International (2015) established that GHK peptides stimulate collagen I and III synthesis, increase decorin production, and upregulate growth factor expression. The addition of copper lysinate/prolinate ensures bioavailable copper for copper-dependent enzymatic processes involved in collagen cross-linking.
Tetrahexyldecyl ascorbate (THDA) represents a more stable, lipophilic form of vitamin C. Research in the Journal of Cosmetic Dermatology demonstrated that THDA penetrates the lipid barrier more effectively than water-soluble L-ascorbic acid, converting to active ascorbic acid intracellularly.
Superoxide dismutase contributes enzymatic antioxidant defense through catalytic dismutation of superoxide radicals. Studies in the Journal of Investigative Dermatology have documented the protective effects of topically applied SOD against UV-induced damage.
The soy isoflavones (genistein and daidzein) provide phytoestrogenic activity. Research published in the Journal of the American Academy of Dermatology showed that topical isoflavones increase dermal collagen, hyaluronic acid content, and epidermal thickness — effects attributed to estrogen receptor activation in skin cells. For perimenopausal and postmenopausal skin, where declining estrogen contributes to collagen loss and thinning, this is a particularly relevant active.
References
- GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration — BioMed Research International (2015)
Dermatologist Perspective
Dermatologists frequently recommend the Youth Intensive Crème for patients with moderate to advanced photoaging who need a comprehensive treatment moisturizer. Board-certified dermatologists note that the formula's breadth — covering peptide signaling, enzymatic antioxidant protection, chemical exfoliation, and phytoestrogenic support — makes it particularly valuable for postmenopausal patients experiencing estrogen-related skin changes. The inclusion of soy isoflavones addresses a mechanism that most anti-aging products overlook entirely.
Guidance
Usage Guide
How to Use
Apply a small amount to clean skin, smoothing evenly over face and neck. Use morning and evening. Follow with sunscreen in the morning. Can be layered over lighter treatment serums. Allow to absorb fully before applying makeup.
Value Assessment
At $256 for 1.7 oz, the Youth Intensive Crème sits at the top of the clinical moisturizer market. A 3.5 oz size at $420 ($120/oz) offers considerably better per-ounce value. The formulation complexity is genuine — specialty ingredients like superoxide dismutase and copper lysinate/prolinate are expensive to source at pharmaceutical grade. For patients who would otherwise use four or five separate products, the consolidation argument has financial merit.
Who Should Buy
Adults with dry to normal skin experiencing moderate to advanced signs of aging who want a single, comprehensive anti-aging moisturizer. Particularly valuable for perimenopausal and postmenopausal skin.
Who Should Skip
Those with sensitive, rosacea-prone, or oily skin. Anyone with soy allergies. Budget-conscious consumers can achieve effective anti-aging results with less expensive products.
Ready to try iS Clinical Youth Intensive Cream?
Details
Details
Texture
Rich, luxurious cream with a velvety consistency. Despite the richness, it absorbs relatively well without an overly greasy residue.
Scent
A subtle, natural citrus and chamomile scent from the ormenis multicaulis oil and citrus peel oils.
Packaging
Frosted glass jar with screw-top lid.
Finish
satindewyvelvety
What to Expect on First Use
Immediately nourishing and comforting. Skin feels deeply moisturized and soft. A slight tingle from the AHA complex is possible but subsides quickly.
How Long It Lasts
2-3 months with twice-daily application to face and neck
Period After Opening
12 months
Best Season
fall winter
Certifications
Cruelty-freeParaben-freeSulfate-free
Background
The Why
The Youth Intensive Crème represents the pinnacle of iS Clinical's formulation philosophy — the idea that aging skin needs a comprehensive nutritional and reparative approach rather than a single-ingredient solution. Developed as the brand's flagship luxury moisturizer, it was designed for patients who wanted one product that addresses every major aging pathway simultaneously.
About iS Clinical Established Brand (5–20 years)
iS Clinical was founded in 2002 by biochemists Bryan Johns and Alec Call under the Innovative Skincare umbrella. The brand is widely used in dermatology offices and medical spas, with multiple peer-reviewed clinical studies supporting its formulations.
Brand founded: 2002 · Product launched: 2010
Myth vs. Reality
Myths & Misconceptions
Myth
Expensive moisturizers always work better than affordable ones.
Reality
Price alone does not guarantee results. However, this formula's ingredient list is genuinely more complex and scientifically layered than most moisturizers at any price point. The cost reflects pharmaceutical-grade sourcing of specialty ingredients like superoxide dismutase and copper peptides.
Myth
The botanical AHAs in a moisturizer can't do much.
Reality
In this formula, the AHAs serve a complementary role — they promote gentle surface renewal that helps the deeper-acting peptides and antioxidants penetrate and work more effectively.
FAQ
Frequently Asked Questions
Is iS Clinical Youth Intensive Creme worth the price?
The formula is genuinely one of the most ingredient-complex moisturizers available — copper peptides, superoxide dismutase, stabilized vitamin C, centella triterpenoids, botanical AHAs, soy isoflavones, and a full vitamin complex. Whether it's worth $256 depends on whether you value having all these actives in one product versus purchasing multiple separate treatments.
Can I use Youth Intensive Creme with retinol?
Yes — this cream pairs well with retinol treatments. Apply your retinoid first, allow it to absorb, then layer this cream on top. The hyaluronic acid and emollients help buffer retinol irritation while the peptides complement retinol's collagen-stimulating effects.
Is Youth Intensive Creme suitable for oily skin?
This is a rich cream best suited for dry to normal skin. Oily skin types may find it too heavy for daytime use, though some prefer it as a nighttime-only treatment.
Does Youth Intensive Creme contain fragrance?
The formula contains Ormenis multicaulis (chamomile) oil and citrus peel oils, which provide a natural scent. These are essential oils that serve aromatic and functional purposes, but citrus oils can be photosensitizing and may irritate sensitive skin.
What is the difference between Youth Intensive Creme and Reparative Moisture Emulsion?
Youth Intensive is richer, contains more active exfoliants, soy isoflavones, and copper lysinate. It's also significantly more expensive ($256 vs $116). Reparative is lighter, features Extremozyme technology, and is better for sensitive or post-procedure skin.
Community
Community Voices
Common Praise
"Luxuriously rich texture that transforms dry, dull skin"
"Noticeably firmer and more radiant skin over time"
"Absorbs better than expected for such a rich cream"
"Works beautifully as a night cream for aging skin"
Common Complaints
"Extremely expensive at $256 for 1.7 oz"
"Contains citrus essential oils that may irritate sensitive skin"
"Too rich for oily or combination skin types"
"Contains soy"
Notable Endorsements
Used in dermatology offices and medical spasCarried by Dermstore and Bluemercury
Appears In
best luxury moisturizer for aging best peptide moisturizer for dry skin best clinical anti aging cream best rich moisturizer for mature skin
Related Conditions
aging dryness dullness texture sun damage
Related Ingredients
peptides hyaluronic acid vitamin c centella asiatica glycolic acid
You Might Also Like
Budget Holy Grail Moisturizing Cream
The CeraVe Moisturizing Cream is the most important moisturizer in the drugstore — a ceramide-rich, dermatologist-developed formula that delivers barrier repair, multi-humectant hydration, and occlusive protection at a price so accessible it has no real excuse not to be in every household. Twenty-one years of consistent performance and universal dermatologist approval speak louder than any ingredient list.
Barrier Repair Pioneer MLE Cream
Atopalm MLE Cream is one of the genuinely scientifically anchored barrier moisturizers in K-beauty — a fragrance-free, pseudo-ceramide cream built around a patented liquid-crystal lipid structure that mimics the skin's own intercellular matrix. For eczema, atopic skin, post-procedure recovery, or anyone with a stinging compromised barrier, it's one of the most reliably effective moisturizers in the entire category.
K-Beauty Barrier Repair Staple Atobarrier 365 Cream
A Korean pharmacy cream that earns its cult following the hard way — with a lamellar lipid structure that actually rebuilds the barrier, not just coats it. If your skin has been through a rough winter, a retinoid ramp-up, or a bad reaction, this is the jar that quietly puts it back together.
Korean Derm Clinic Recovery Pick Real Barrier Cicarelief Cream
One of the best consumer cica creams on the market, combining the full spectrum of centella actives with NeoPharm's MLE ceramide delivery and multiple complementary calming ingredients. Ideal for compromised, reactive, rosacea-prone, or recovering skin, and a staple in Korean dermatology clinic protocols. Minor limitations on packaging, but the formulation is genuinely excellent.
Transparent 10% Panthenol Cream Panthenol 10 Skin Smoothing Shield Cream
A disclosed 10% panthenol barrier cream built around a full physiological ceramide trio, a centella calming cast, and a modest shea butter occlusive. Fragrance-free, cross-season, and unusually transparent about its hero active — one of the brand's strongest moisturizer formulations.
K-Beauty Icon Advanced Snail 92 All in One Cream
The cream that helped prove snail mucin to the world — and a decade later, it still deserves the reputation. At 92% snail secretion filtrate in a fragrance-free, gentle gel-cream, it delivers hydration, soothing, and gradual skin improvement across virtually every skin type. The texture takes getting used to, but 13 million sold units and 25,000+ reviews suggest most people manage.