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SUPER STRENGTH GHK-Cu PEPTIDE SERUM
Not all copper peptide serums are created equal.
COPPER•K™ takes a different approach to advanced skincare. Rather than combining copper peptides with a long list of additional active ingredients, we focus on what matters most: high-purity GHK-Cu copper peptide in a clean, minimalist, water-based formula.
Crafted with high-purity GHK-Cu raw material, COPPER•K™ is designed to showcase the ingredient itself without unnecessary complexity.
Its lightweight, water-based texture absorbs quickly, delivering a beautifully streamlined skincare experience without a heavy or greasy finish.
No overcrowded formulas. No unnecessary extras. Just high-purity copper peptide technology, thoughtfully formulated.
High-Purity GHK-Cu — Formulated with premium-grade copper peptide raw material.
Minimalist Formulation — A focused approach without an excessive collection of competing active ingredients.
Visibly Firmer-Looking Skin — Helps improve the appearance of firmness and elasticity.
Smoother-Looking Texture — Promotes a softer, more refined complexion.
Fine Lines + Expression Lines — Helps soften the appearance of fine lines.
More Radiant-Looking Skin — Enhances the appearance of a refreshed, youthful glow.
Fast-Absorbing Water-Based Formula — Lightweight, non-greasy, and designed to layer effortlessly into your skincare routine.
Fragrance-Free — No added fragrance.
It's Not About More Ingredients. It's About the Right Ingredient.
GHK-Cu (Copper Tripeptide-1) is a naturally occurring copper peptide valued in advanced cosmetic formulations for its skin-conditioning properties.
At TINA•K SKIN, we believe the quality of an ingredient matters just as much as its presence on an ingredient list.
That's why COPPER•K™ is formulated using high-purity GHK-Cu, with a focused, water-based delivery formula that allows the copper peptide to remain the star of the show.
The result is a lightweight, sophisticated serum designed to help skin appear smoother, firmer, and more radiant.
Application Is Everything.™
After cleansing and toning, apply the pre-dosed dropper amount of COPPER•K™ to the face and neck while skin is slightly damp.
Gently press into the skin until absorbed.
Follow with your favorite TINA•K facial oil and moisturizer. Finish with broad-spectrum SPF during the daytime.
Use morning and evening.
HIGH PURITY. MINIMAL INGREDIENTS. MAXIMUM INTENTION.
We don't believe more ingredients automatically mean better skincare.
COPPER•K™ was created with one philosophy: let the copper peptide take center stage.
By focusing on high-purity GHK-Cu in a minimalist, fast-absorbing water-based formula, we've created a sophisticated daily treatment without unnecessary ingredient overload.
Because sometimes, the most advanced approach to skincare is knowing what to leave out.
COPPER•K™ — Pure Peptide. Powerful Simplicity.
Store in a cool, dry place away from direct sunlight.
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– TINA•K
Are your products organic / natural?
Our Ingredient Philosophy
Tina K skincare, body care, and bath products are thoughtfully formulated with a balance of organic botanicals and advanced scientific ingredients. We believe truly corrective skincare happens when nature and science work together in perfect synergy.
Botanical ingredients support the skin with nourishment and wellness, while clinically studied actives deliver the efficacy and corrective results your skin needs.
Our philosophy is simple: care deeply about health and wellness, while remaining uncompromisingly results-driven. Each formula is intentionally crafted so every ingredient works together to support stronger, healthier, more radiant skin. ✨
Do your products contain fragrance?
At Tina K, fragrance is intentional. Our products are either lightly kissed with the cleanest fragrance available or completely fragrance-free—giving your skin exactly what it needs, nothing it doesn’t. We do not use any Prop 65–listed fragrances, and every formula is designed to feel fresh, natural, and effortlessly clean. From body oils to skincare, you’ll always have the option to go scent-free or subtly scented—never overwhelming, always elevated.
Is there talc in any of your products?
Talc-Free Commitment
All Tina K products are 100% talc-free. We believe beauty should support both health and wellness, which is why our formulas are thoughtfully created without talc.
Our approach is simple: keep your beauty routine clean, conscious, and skin-supportive so you can enjoy products that feel as good for your health as they do for your skin.
What is the shelf life of my product?
All Tina K skincare products have a 12-month shelf life after opening, also known as the Period After Opening (PAO). This standard applies across our entire skincare system.
After 12 months, the formula may still be enjoyable to use, but the potency and efficacy of the active ingredients can begin to decline. For best results and optimal performance, we recommend using your product within this one-year window after opening.
