Skincare that makes sense. See what's really in your products — in plain English.

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For informational purposes only — not medical advice. Always consult a dermatologist for skin concerns.

Blue Vitriol

1% line markerAI-analyzed

INCI: COPPER SULFATE

astringentskin conditioningcolorant

What it does

An inorganic copper salt used in cosmetics as an astringent, skin conditioning agent, and sometimes as a colorant. It can help to tone the skin and support enzymatic functions.

Skin Concerns

Beneficial for

acneagingdullnesslarge poresoily skintexture

May aggravate

sensitivity

Safety & Science

Safety summary

Generally considered safe for cosmetic use in low concentrations. High concentrations can be irritating.

CAS Number

7758-98-7

1% line marker

This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.

Found In Products

Related Ingredients

At a Glance

INCI Name: COPPER SULFATE
Common Name: Blue Vitriol
Functions: astringent, skin conditioning, colorant
Products: 17 products
CAS Number: 7758-98-7

For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.

Blue Vitriol — Skincare Ingredient Guide — Dermasift — Dermasift