✶

Loading...

1-Naphthol vs Cl 42090 — Which Is Better for Skin? | Gracie

GracieHonest skincare intel

Products
Ingredients
Brands
K-Beauty
Blog
How We Score

Gracie
/Ingredients
/1-Naphthol
/vs
/Cl 42090

1-Naphthol vs Cl 42090

1-Naphthol and Cl 42090 are both added colour ingredients. 1-Naphthol is found in 1 product while Cl 42090 appears in 2, making Cl 42090 the more widely used option.

Added colour

1-Naphthol

Added colour

1 products

Added colour

Cl 42090

Added colour

2 products

Top products with 1-Naphthol

Compare

Best Moisturisers
Best Serums
Best Cleansers
Best SPF

Ingredients

Niacinamide
Retinol
Hyaluronic Acid
Salicylic Acid

K-Beauty

K-Beauty Hub
K-Beauty Moisturisers
K-Beauty Serums
K-Beauty Sunscreens

About

Methodology
About Us
All Brands
All Products

Gracie

Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.

L'Oreal Norge AS

Olia Hårfarge Metallic Silver 9.11

6.5

Top products with Cl 42090

Frescoryl

Shampooing très doux

Frequently asked questions

What is the difference between 1-Naphthol and Cl 42090?

1-Naphthol is categorised as "Added colour" while Cl 42090 is categorised as "Added colour". They serve different functions in skincare formulations.

Can I use 1-Naphthol and Cl 42090 together?

In most cases, these ingredients can be used together. However, always patch test and introduce new ingredients gradually.

Which is more common in skincare products?

1-Naphthol is found in 1 products, while Cl 42090 is found in 2 products in our database.

View 1-Naphthol View Cl 42090

Some links on this site are affiliate links. We may earn a commission from purchases made through our links, at no extra cost to you. This helps us keep Gracie free and independent.

© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.