Nature meets science in our GHK-Cu collection, designed to harmonize with every skin journey. Since copper peptides are already a natural part of your body’s biology, our formulas work intuitively with your skin rather than against it.

• Glow-Seekers & Mature Skin: Our absolute favorite for restoring that bouncy, youthful resilience and softening fine lines.
• Sensitive Souls: Unlike harsh synthetics, GHK-Cu gently nurtures and strengthens your skin barrier, making it a dream for those prone to redness or irritation.
• Oily & Balanced Profiles: Lightweight and breathable, it clarifies and refines texture without ever feeling heavy or clogging your pores.
• Dry & Dehydrated Skin: It acts as the perfect "support system" to help your skin better retain moisture and look instantly more revived.

GHK-Cu is generally considered suitable for most skin types, including sensitive skin. However, everyone’s skin is different, so we recommend performing a patch test before full use.

If irritation occurs, discontinue use and consult a healthcare professional.

Most people begin to notice improvements in skin hydration, smoothness, and overall appearance within 2–4 weeks of consistent use. More noticeable improvements in skin texture and appearance typically occur after 6–12 weeks of regular use.

Results can vary depending on skin type, consistency of use, and overall skincare routine.

Hair growth and thickening is a slow process, so results take longer than skincare. With consistent use, most people may begin to notice improvements in hair thickness, shedding, or scalp condition after 8–12 weeks, with more noticeable results after 3–6 months.

Consistency is very important for hair products.

GHK-Cu products are generally used by adults and are most commonly used by people who are looking to improve the appearance of skin or hair.

We recommend these products for adult use only.

GHK-Cu is a naturally occurring copper peptide found in the human body. It is commonly used in skincare and hair products to support skin appearance, hair appearance, and overall scalp health.

In cosmetic products, GHK-Cu is known for helping improve the appearance of:

• Skin firmness
• Fine lines and wrinkles
• Skin texture
• Hair thickness appearance
• Scalp condition

It is often called “the beauty peptide” because of its wide range of cosmetic uses for both skin and hair.

GHK-Cu is popular because it is a multi-purpose cosmetic peptide, meaning it can be used for both skin and hair products. We use it in our formulations due to its stability, compatibility with many skincare ingredients, and its ability to support overall skin and hair appearance.

Many people choose copper peptides because they can be used long-term and fit easily into most skincare and haircare routines.

es, GHK-Cu can generally be used with most skincare and haircare products. It works well alongside:

• Hyaluronic acid
• Moisturisers
• Niacinamide
• Peptides
• Most serums

If using multiple active products, it is usually best to apply GHK-Cu after cleansing and before heavier creams or oils.

Ensure you do not use GHK-Cu with non-compatible products to avoid deteriorating the formulas stability.

Please read product labels for directions of use. Below is general summary of best use practices.

Skin:
Apply a small amount to clean, dry skin once or twice daily before moisturiser.

Hair / Scalp:
Apply a small amount directly to the scalp in the target area once or twice daily and gently massage in. Do not rinse out.

Use consistently for best results.

Yes, we offer international shipping to select countries, including the United States. Shipping costs and delivery times are calculated at checkout based on your location.

Please note that international orders may be subject to customs duties, import taxes, or other fees charged by your country. These charges are the responsibility of the customer and are not included in our shipping costs.

Delivery times for international orders are estimates only and may vary due to customs processing and local postal services.

See our shipping policy here.

Once your order has been shipped, you will receive a shipping confirmation email with your tracking number and a link to track your parcel.

You can use the tracking link in the email to see the latest updates on your delivery. Please allow some time for tracking information to appear after your order has been dispatched.

If you cannot find your tracking email, please check your spam or junk folder, or contact us at support@cuhairskin.com.au and we will resend your tracking information.

Shipping times may vary based on location.

Estimated Delivery Times
Estimated delivery times (after dispatch):

• Australia: 1–5 business days
• United States: 5-9 business days
• International: 4-7 business days

These are estimates only and not guaranteed delivery timeframes.

See our shipping policy here.

See our return policy here.

See our return policy here.