Colouring Agent/Pigment

Copper Chlorophyll

INCI: COPPER CHLOROPHYLL

Reviewed by Rosie · Last updated 20 Jul 2026

A copper-based chlorophyll derivative used primarily as a cosmetic colourant

Best For Skin Types

All

Addresses

Fine lines, Photoaging, Loss of firmness

Effective Concentrations

0.05%

Usage Frequency

Daily

What Is Copper Chlorophyll?

Copper chlorophyll is a synthetic compound derived from chlorophyll, the pigment responsible for the green colour in plants. It is created by replacing the magnesium centre of natural chlorophyll with copper, which alters its chemical properties and stability. In cosmetics, it functions primarily as a colorant, imparting green or blue-green hues to skincare formulations.

Beyond its colouring role, copper chlorophyll compounds—particularly when formulated as sodium copper chlorophyllin complexes—have been investigated for potential benefits in supporting skin health. The copper component and the overall molecular structure may interact with skin tissue in ways that warrant further examination.

How It Works

Copper chlorophyll works through two mechanisms. Firstly, as a colorant, the molecule absorbs and reflects light in ways that create its distinctive green colour without the need for synthetic dyes. Secondly, when absorbed or retained in skin tissue, copper chlorophyll may interact with cellular processes—particularly those related to collagen and elastin maintenance in the deeper skin layers.

The copper component is thought to play a role in enzymatic activity and cellular signalling, though the exact pathways remain incompletely understood. Most evidence comes from small-scale studies, and the practical significance of these mechanisms in everyday skincare use requires clarification.

Clinical Evidence & References

A small clinical study examining sodium copper chlorophyllin in a liposomal gel formulation (0.05% concentration) found statistically greater expression of fibrillin and epidermal mucins in photoaged skin compared to untreated controls over a 12-day period. Fibrillin is a key structural protein, and increased expression may indicate active skin repair processes.

However, this evidence is preliminary: the study involved only four participants and a short timeframe. Whilst the findings are encouraging, they do not yet establish copper chlorophyll as a proven anti-ageing agent. More extensive clinical trials would be needed to confirm efficacy, determine optimal concentrations, and establish long-term safety. The ingredient's primary cosmetic role remains as a colorant.

How to Use

Copper chlorophyll is typically incorporated into serums, gels, and creams where its colouring properties are desired. If using a product containing this ingredient for its potential skin benefits rather than solely for colour, consistent use as directed is advisable. Since research is limited, it works best as part of a broader skincare routine that includes established actives such as sunscreen, retinoids, or vitamin C, rather than as a standalone treatment.

Safety & Precautions

Copper chlorophyll is generally well-tolerated in cosmetic concentrations. As with any copper-containing ingredient, those with known sensitivities to copper or copper-contact dermatitis should exercise caution. Patch testing is advisable for sensitive skin.

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