Copper Peptide
Copper Tripeptide-1
A copper-binding peptide included as part of Cohesion's cosmetic active system.

STRATUUM / DERMAL SCIENCE
for a visibly refined, radiant complexion
Considered care for visibly refined skin.
Selected: One-time purchase, A$119
Australian delivery included · Encrypted payment · Consumer guarantees apply
Stratuum Cohesion, a 50 mL cosmetic cream. Australian delivery included.
The approach
Helps skin look smoother and more even where persistent visible marks and textural irregularity remain.
Dimethicone and a silicone elastomer create refined slip and a smooth cosmetic layer for a softer-looking finish.
Ceramides, cholesterol, phytosphingosine, glycerin and sodium hyaluronate help skin feel conditioned, supple and comfortable.

The experience
Cohesion is a lightweight, blue-toned cream with a silicone-supported finish. It spreads in a thin, even layer for consistent daily cosmetic care.
Formula architecture
Cohesion pairs a targeted cosmetic active system with hydration, skin-identical lipids and a silicone-supported base. We list every ingredient in full. Ingredient research explains why each one is here. It does not prove the finished product produces the same result.
Copper Tripeptide-1
A copper-binding peptide included as part of Cohesion's cosmetic active system.
Dimethicone; Dimethicone/Vinyl Dimethicone Crosspolymer
Creates elegant slip and a smooth, flexible cosmetic layer over the skin's surface.
Ceramide NP, AP and EOP; Cholesterol; Phytosphingosine
A skin-lipid system included to help keep skin feeling conditioned and supported.
A widely used cosmetic active selected to support a more even and radiant-looking complexion.
Sodium Hyaluronate
Works with glycerin to support hydration and a more supple skin feel.
Aqua, Glycerin, Niacinamide, Xanthan Gum, Citric Acid, Sodium Citrate, Butyrospermum Parkii (Shea) Butter, C13-15 Alkane, Glyceryl Stearate, PEG-100 Stearate, Dimethicone, Dimethicone/Vinyl Dimethicone Crosspolymer, Phenoxyethanol, Ethylhexylglycerin, Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Cholesterol, Sodium Lauroyl Lactylate, Carbomer, Sodium Hyaluronate, Copper Tripeptide-1
Always check the ingredient list on your product before use, particularly if you have known sensitivities.
Research
Each ingredient in Cohesion has a defined technical or sensory role. The research below is published, peer-reviewed literature on these ingredients. It explains why we chose them. It does not prove the finished Cohesion formula produces the same results, and we won't pretend it does.
Copper Tripeptide-1 (GHK-Cu)
Cosmetic activeA naturally occurring copper-binding peptide studied for its role in skin support. Published research links GHK-Cu to processes relevant to skin appearance, including collagen and glycosaminoglycan synthesis. We chose it as part of Cohesion's cosmetic active system.
International Journal of Molecular Sciences, 2018 · Review
BioMed Research International, 2015 · Review
Dimethicone; Dimethicone/Vinyl Dimethicone Crosspolymer
Base / sensoryDimethicone is one of the most studied topical ingredients in dermatology. A 2014 study showed that common silicone excipients are non-occlusive. They allow water vapour to pass through the skin surface, unlike petrolatum. That is why Cohesion's silicone-supported base creates a smooth, flexible cosmetic layer without trapping moisture against the skin.
Skin Research and Technology, 2014 · Clinical study
Journal of Cutaneous and Aesthetic Surgery, 2023 · Review
Ceramide NP, AP, EOP; Cholesterol; Phytosphingosine
Barrier supportCeramides are naturally occurring skin lipids that form part of the stratum corneum barrier. Randomised controlled trials have found that ceramide-containing moisturisers improve skin hydration and support barrier function. Cohesion uses a ceramide system with cholesterol and phytosphingosine in a barrier-minded approach.
Niacinamide
Cosmetic activeA widely studied form of vitamin B3 used across cosmetic dermatology. Published research supports niacinamide's role in skin appearance, including barrier function and even-looking tone. It is among the most researched cosmetic actives in regular use.
Sodium Hyaluronate
HydrationSodium hyaluronate is the salt form of hyaluronic acid, a humectant that attracts and holds water. It works with glycerin in Cohesion to support hydration and a more supple skin feel. Hyaluronic acid is among the most used and well-tolerated humectants in skincare.
Clinical, Cosmetic and Investigational Dermatology, 2018 · Clinical study
These studies investigate ingredients in various formulations and contexts. Results cannot be directly extrapolated to the finished Cohesion formula. Always patch test a new product and consult a healthcare professional for skin concerns.
Discipline
The Cohesion formula was developed by looking at the role of each ingredient system, how those systems work together in a usable cosmetic base, and the practical requirements of repeated topical use. Ingredient-level research informs our formulation choices. We do not present it as finished-product clinical proof.
each component has a defined technical or sensory role
hydration and skin lipids are part of the formula, not an afterthought
complete ingredients and clear directions stay easy to find
appearance claims are not inflated into medical promises
How to use
Test a small amount on a discreet area before first use and wait 24 hours.
On clean, dry, intact skin, smooth a thin and even layer over the desired area.
Begin once daily for several days. If well tolerated, apply twice daily, morning and evening, for best results.
Follow with moisturiser where needed and use broad-spectrum sunscreen on exposed skin during the day.


Stratuum
Stratuum makes focused skincare for visible tone, texture and refinement. Cohesion brings that philosophy into a single cream: a researched ingredient system, a refined daily experience, and language that respects the line between cosmetic care and medical treatment.
Visible results
Applied twice daily to clean, intact skin, Cohesion supports a visibly refined, smoother-looking complexion over time. Individual results vary. The images below will reflect real, unretouched outcomes from consistent twice-daily use.
Before (image pending)
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After (image pending)
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Images shown will reflect individual results and are not a guarantee of outcome. Cosmetic use only. Results cannot be directly extrapolated from ingredient research.
Questions
Cohesion is a cosmetic cream designed to improve the appearance and feel of skin with persistent visible marks, uneven-looking tone or textural irregularity.
No. Cohesion is a cosmetic product for the appearance and condition of the skin. It is not a medicine, does not replace medical care, and is not intended to diagnose, treat or prevent a disease or injury.
Do not use Cohesion on open wounds, fresh incisions, infected skin or skin that has not fully closed. After surgery or a procedure, follow the treating clinician's advice about when topical skincare is appropriate.
Patch test first. Begin once daily for several days. If well tolerated, apply twice daily, morning and evening, for best results. There is no upper limit on duration of use; continued application supports ongoing visible improvement.
Skin appearance and individual routines vary, so a fixed result or timeframe cannot be promised. Consistent use and sun protection are important parts of cosmetic skin care.
The blue tone is a normal characteristic of the copper peptide-containing formula. Natural variation may occur between batches without affecting use.
Cohesion is intended for targeted use on suitable areas of intact skin on the face or body. Avoid the eye area and mucous membranes.
One 50 mL bottle delivered for A$99 every 2, 3 or 4 months, according to the interval you choose. The subscription renews automatically until cancelled. You can change the interval, update payment details or cancel online before the next billing date.
Use the Manage subscription link in the website footer or in your subscription emails. There is no cancellation fee.
COHESION
Considered care for visibly refined skin.
Selected: One-time purchase, A$119
Standard Australian delivery included. Change of mind within 30 days on unopened product. Shipping & returns. Terms.

Stratuum Cohesion, 50 mL cosmetic cream, delivered within Australia.