How long does it take to see results?

Many people begin to see and feel results within the first couple weeks, but studies indicate that fullest results occur after about three months of daily use.

Is it a good idea to take days off?

There is no evidence of a need to take days off from use of this serum. It is intended for daily use on the face, and the human studies showing benefits employ daily use for months.

Do you ship internationally?

Innerbody Labs ships to countries across the globe, and our reach is expanding. Currently, we ship to Australia, New Zealand, Canada, the United Kingdom, and Ireland.

Copper Peptide Serum

4.5

Rated 4.5 out of 5 stars

4.5 Stars (17 Reviews)

An advanced approach to radiant, revitalized skin.

Clinically studied GHK-Cu copper peptides support your skin's natural repair and renewal processes, while hydrating and barrier-supporting nutrients help improve skin quality over time.

Firmer skin
Fewer visible lines
Even texture
Healthy skin barrier

Gentle for sensitive skin
Noncomedogenic
Fragrance-free
Cruelty-free
Made in USA

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Astaxanthin+

Helps Protect Against Oxidative Stress*
Billed every 30 days.

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NAD+ Support

Mitochondrial & cellular health*
Billed every 30 days.

~~$74~~ $59

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GMP-Certified Facility

Made in the USA with globally sourced ingredients

Third-Party Testing

Made in FDA
Registered Facility

Heavy Metal / Contaminant Tested

Science-backed formulas

Benefits

Hydration

Sodium hyaluronate and glycerin are humectants, which help retain moisture. In various studies they have been shown to increase skin hydration.

Skin firmness and elasticity

GHK-Cu and Centenella asiatica can stimulate cell activity to increase collagen production, helping to achieve firmer, more elastic skin.

Skin barrier support

Centella asiatica’s action on collagen production has also demonstrated skin barrier support in clinical research. The same goes for niacinamide.

Repair and renewal

Royal jelly, Lactococcus ferment lysate, and functional mushrooms are among the ingredients that have clinically shown the ability to repair blemishes or restore a more youthful appearance.

Antioxidant support

While GHK-Cu provides indirect antioxidant support, partly by helping to control inflammation, ingredients such as beta-glucan and Centella asiatica have been shown to reduce the oxidative stress that leads to inflammation.

Hydration

Sodium hyaluronate and glycerin are humectants, which help retain moisture. In various studies they have been shown to increase skin hydration.

Skin firmness and elasticity

GHK-Cu and Centenella asiatica can stimulate cell activity to increase collagen production, helping to achieve firmer, more elastic skin.

Skin barrier support

Centella asiatica’s action on collagen production has also demonstrated skin barrier support in clinical research. The same goes for niacinamide.

Repair and renewal

Royal jelly, Lactococcus ferment lysate, and functional mushrooms are among the ingredients that have clinically shown the ability to repair blemishes or restore a more youthful appearance.

Antioxidant support

Every Ingredient Earns Its Place.

Our formulas are built around one principle: every ingredient should have a clear purpose.

We select clinically studied ingredients, use doses aligned with published human research, and combine them thoughtfully to work with your body's natural biology. If an ingredient doesn't meet our standards for evidence, quality, or long-term safety, we leave it out.

The Innerbody Labs Standard

Human-First Evidence

Evidence-based Dosing

Third-Party Tested

Clinically studiedNo proprietary blends

See what we included and why

GHK-Cu (Copper Tripeptide)

Supports skin's natural repair and renewal for firmer, healthier-looking skin*

GHK-Cu is one of the most extensively studied cosmetic peptides for supporting healthier-looking skin. It works with your skin's natural renewal processes to help improve the appearance of firmness, smoothness, and visible signs of aging over time.*

Decades of clinical research have explored GHK-Cu's ability to support collagen and elastin production while improving overall skin quality.* Our formula includes the clinically studied 1% concentration shown in research to deliver consistent cosmetic benefits.

Niacinamide

Strengthens the skin barrier while improving hydration and texture*

Niacinamide (vitamin B3) is a skincare essential known for helping skin retain moisture, maintain a healthy barrier, and improve overall skin texture. It also helps promote a more balanced, even-looking complexion.*

We included niacinamide because healthy, hydrated skin provides the foundation for firmer, smoother, more radiant-looking results.

Aloe Vera Leaf Juice

Comforts skin while supporting lasting hydration*

Aloe vera helps replenish moisture and leaves skin feeling calm, soft, and refreshed. Its naturally hydrating properties help support skin elasticity and overall skin comfort.*

It complements GHK-Cu by helping maintain a well-hydrated environment that supports healthier-looking skin over time.

Sodium Hyaluronate

Deep hydration for smoother, plumper-looking skin*

Sodium hyaluronate is a highly bioavailable form of hyaluronic acid that attracts and retains moisture beneath the skin's surface, helping improve hydration, smoothness, and the appearance of fine lines.*

We selected sodium hyaluronate for its ability to deliver lasting hydration that supports healthier skin quality day after day.

Reishi and Shiitake Extracts

Botanical antioxidant support for healthier-looking skin*

Reishi and shiitake mushroom extracts provide antioxidant support while helping maintain skin firmness and resilience. Their naturally occurring compounds help protect skin from everyday environmental stressors that can affect overall skin appearance.*

Together, they complement the formula's repair and renewal philosophy by supporting healthy-looking skin over time.

Glycerin

Reinforces the skin barrier and locks in moisture*

Glycerin is one of skincare's most trusted moisturizers, helping draw water into the skin while strengthening the skin's natural moisture barrier. The result is skin that feels softer, smoother, and better hydrated.*

Healthy barrier function is essential for maintaining comfortable, resilient skin and maximizing the benefits of the rest of the formula.

Probiotic-Derived Lysates

Supports a balanced, healthy-looking complexion*

Probiotic-derived lysates help support the skin's natural barrier and microbiome while promoting a calm, balanced complexion. They complement the formula by helping skin maintain its healthy appearance.*

By supporting overall skin comfort and resilience, they help create an ideal environment for your skin's natural repair and renewal processes.

Royal Jelly

Nourishes skin for a smoother, more radiant appearance*

Rich in proteins, vitamins, and naturally occurring lipids, royal jelly helps nourish the skin while supporting softness, smoothness, and visible radiance. Its unique nutrient profile has made it a longstanding ingredient in premium skincare formulations.*

We include royal jelly to complement the formula's focus on supporting healthier-looking skin through nourishment and daily care.

Beta-Glucans

Supports skin renewal and resilience*

Beta-glucans are natural polysaccharides found in mushrooms, cereals, and nutritional yeast. Their well-studied role in skin renewal makes them an ideal addition to a formula designed to reinforce the skin's natural resilience, helping build smoother, healthier-looking skin over time.*

Ingredients We Don’t Include

Choosing what not to include is just as important as choosing what goes in. If an ingredient lacks sufficient evidence, raises meaningful safety concerns, or doesn't clearly improve the formulation, we leave it out, regardless of how popular it may be.

Added Fragrance

Essential Oils

Drying Alcohols

Synthetic Dyes

Silicones

Parabens

Supported By Clinical Research

In a study among women aged 40 to 45, GHK-Cu reduced wrinkle volume and wrinkle depth better than Matrixyl 3000 and control.

*Badenhorst, T., et al. (2016). Effects of GHK-Cu on MMP and TIMP expression, collagen and elastin production, and facial wrinkle parameters. Journal of Aging Science, 4(3), 1000166.

In a 2006 clinical study of 100 Japanese women, a 2% niacinamide cream applied daily resulted in improvements in facial oil production over a placebo moisturizer.

*Draelos, Z. D., Matsubara, A., & Smiles, K. (2006). The effect of 2% niacinamide on facial sebum production. Journal of cosmetic and laser therapy : official publication of the European Society for Laser Dermatology, 8(2), 96–101. 10.1080/14764170600717704

A study of middle-aged Chinese women found that 12 weeks of reishi application dramatically improved skin dryness, elasticity, surface sheen, and smoothness.

*Huang, Shouyao; Jiao, Chunwei; Liang, Huijia; Yang, Yongshan; Chen, Jiaming ; et al. (2015). Study on the Anti-aging Efficacy of the Active Ingredients in Aqueous Extract of Ganoderma lucidum. Agricultural Biotechnology; Cranston Vol. 4, Iss. 5, 73-76.

In a 2025 clinical study, Lactococcus ferment lysate decreased the average number of skin lesions from 48.5 to 24.5 in cases of acne vulgaris.

*Anwar, A. I., et al. (2025). Effectiveness of topical microbiome containing Lactococcus ferment lysate 5% in acne vulgaris patients. Journal of Pakistan Association of Dermatologists, 35(2), 93-98.

Clinical Research Behind Copper Peptide Serum

Wrinkle volume reduction compared with Matrixyl 3000

Wrinkle volume reduction with control

Wrinkle depth reduction with control

Customer Reviews

4.5

Rated 4.5 out of 5 stars

Based on 17 reviews

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17 reviews

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Henry W.
Verified Buyer
I recommend this product
Rated 4 out of 5 stars
1 month ago
Effective
This seems to be better product than less-expensive brands. I think it must be the extra ingredients boosting what GHK-Cu always does for my skin. As with literally everything in 2026, I wish it were more affordable.
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camille s.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 month ago
A permanent part of my routine
so glad i found this - a great value for what it does. it’s earned a permanent place in my routine.
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Brenda
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 month ago
glowingggg
I can tell after one week that this is wholesome and beneficial for my skin. It feels good immediately.
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Frequently asked questions

Topicals with vitamin C, exfoliants and strong acids, and retinoids should not be used at the same time of day as a copper peptide serum. Layering such products with GHK-Cu can cause irritation or render the products ineffective. Instead, apply such products at a different time of day. (For example, if you use an exfoliant at night, you could apply your copper peptide serum in the morning.)

Innerbody Labs Copper Peptide is formulated for once-daily use. With any new skincare product, it's never a bad idea to start gradually. Try applying to a small patch of skin first, to make sure you don't experience any unexpected irritation. You can then use the product three or four days in week one, and then use it daily in week 2 and onward.

What dermatologists advise, of course, varies from patient to patient, but dermatologists do recommend safely-formulated copper tripeptide topical products for people who want to improve skin firmness and elasticity, repair skin barrier, and support healthy aging.

Used as directed, a topical GHK-Cu at this concentration is typically very well tolerated, but side effects are possible. When they occur, they tend to be localized and transient. These may include skin irritation (redness, tingling), contact dermatitis (localized allergic reaction), or acne breakouts. Excessive use of products with too strong a concentration or poor formulation may lead to copper toxicity or worsened skin.

Talking to your doctor is always good advice before introducing a new health product. Start off small by testing the product on a patch of inconspicuous skin to make sure it does not irritate your skin.

Copper Peptide Serum

Hydration

Skin firmness and elasticity

Skin barrier support

Repair and renewal

Antioxidant support

Hydration

Skin firmness and elasticity

Skin barrier support

Repair and renewal

Antioxidant support

Every Ingredient Earns Its Place.

The Innerbody Labs Standard

Supported By Clinical Research

Clinical Research Behind Copper Peptide Serum

Frequently asked questions

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