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Shop the GHK-Cu Series
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PB Cosmetics · Luxury Skincare
A youthful glow. Deep hydration. Firmer, smoother-looking skin.
At PB Cosmetics, we create advanced skincare designed to help your skin look firmer, smoother and more youthful, while delivering the hydration it needs for a fresh, healthy-looking glow. Skincare designed to bring out your best-looking skin.
The science
Advanced peptide skincare
Every formula is built around Copper Tripeptide-1 (GHK-Cu), paired with a complex of supporting peptides and hydration and barrier ingredients — niacinamide, hyaluronic acid, ceramides, squalane, panthenol, beta-glucan and collagen.
01
Copper Tripeptide-1
GHK-Cu · the hero
The key active throughout the range — a cosmetic copper peptide used to support the appearance of firmer, smoother and healthier-looking skin.
02
The peptide complex
Five supporting peptides
Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Palmitoyl Tripeptide-5, Palmitoyl Pentapeptide-4 and Dipeptide Diaminobutyroyl Benzylamide Diacetate — paired with GHK-Cu for a more complete formula, designed for smoother, firmer, more youthful-looking skin.
03
Niacinamide
Vitamin B3
A well-established cosmetic ingredient that helps improve the appearance of uneven skin tone, texture and visible pores while supporting the skin's barrier.
04
Hyaluronic Acid
Sodium Hyaluronate
Attracts and retains moisture, helping skin appear plumper and more hydrated.
05
Ceramides
NP · NG · AS · EOP · AP
Naturally associated with the skin's protective barrier. Used here to condition the skin and support a healthy-looking barrier, so skin feels soft, comfortable and moisturised.
06
Squalane
Lightweight emollient
Softens and conditions the skin with a smooth, comfortable feel — without a heavy finish.
07
Panthenol
Pro-vitamin B5
Valued in skincare for its moisturising and skin-conditioning properties, with glycerin to draw moisture towards the skin.
08
Beta-Glucan & Collagen
Skin conditioning
Beta-glucan helps support a comfortable, hydrated-looking complexion; hydrolysed collagen is a classic skin-conditioning ingredient.
09
Red Algae & Sea Water
Sea-derived conditioning
Hydrolysed red algae extract and sea water, commonly used for their conditioning and moisturising properties, helping support a fresh, healthy-looking complexion.
Cosmetic claims describe the appearance of skin. Individual results vary.
The ritual
Five steps, morning and night
Each product is designed to be layered in sequence, so every step prepares the skin for the next.
Step 01 · Cleanse
Copper Peptide Cleanser
A gentle, low-foam cleanse that lifts away the day without stripping.
Step 03 · Treat
Snap-8 Peptide Serum
The concentrated heart of the ritual. Press into skin, morning and night.
Step 05 · Body
Copper Peptide Body Oil
Massage into clean, slightly damp skin after bathing — hydrates, smooths and leaves skin radiant.
The Deluxe Bundle · All five for £100Shop the bundle — £100
Cleanse. Hydrate. Repair. Glow.
Complete care, visible results. The Deluxe Bundle brings the whole GHK-Cu Series together — cleanser, toner, Snap-8 serum, face cream and body oil — for £100 instead of £134. Everything you need for the full ritual, morning and night, with free UK delivery.
Five formulas built around Copper Tripeptide-1 (GHK-Cu), with niacinamide, hyaluronic acid, ceramides, squalane, panthenol, beta-glucan and collagen — a simple routine designed to leave skin looking smoother, plumper, fresher and more hydrated.
Why PB
Considered from formula to finish
Peptide-led formulas
Built around GHK-Cu and a supporting cast of signal peptides, hyaluronic acid and pro-vitamin B5.
A complete ritual
Cleanser, toner, serum, face cream and body oil — designed to be used together.
Luxury in every detail
Navy glass, gold accents and textures that make every step feel like a moment.
Good to know
Questions, answered
What is GHK-Cu?
GHK-Cu (Copper Tripeptide-1) is a naturally occurring copper peptide complex. In skincare it is prized for supporting the look of firmer, smoother and more even-toned skin — which is why it sits at the heart of every formula in the series.
Can I use the series with vitamin C or exfoliating acids?
We suggest keeping copper peptides and strong acids or L-ascorbic acid (vitamin C) in separate routines — for example vitamin C in the morning and your GHK-Cu ritual at night. If your skin is new to actives, introduce one product at a time.
How long until I see a difference?
Skin renews itself over roughly four to six weeks, so we recommend using the ritual consistently, morning and night, for at least eight weeks. Results vary from person to person.
Is it suitable for sensitive skin?
As with any new skincare, patch test first: apply a small amount to the inner forearm and wait 24 hours. Discontinue use if irritation occurs, and consult a dermatologist if you have a skin condition or are pregnant or breastfeeding.
In what order should I apply the products?
Cleanser, toner, serum, then face cream — morning and evening. The body oil is massaged into clean, slightly damp skin after bathing or showering. Each step prepares the skin for the next.