Versus

Dr Sam’s Flawless Neutralising Gel Versus Cos De BAHA Azelaic Acid 10% Serum with Niacinamide

Facial Treatment
Serum
British Brand United Kingdom
Korean Brand South Korea

Updated on May 27, 2025

Overview

What they are

These products are both cruelty-free and reef safe . They have a total of 2 ingredients in common

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

Ingredient Info

Click any item below to learn more and see relevant ingredients

What's inside

What's inside

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Buffering, Masking

Azelaic acid is a multitasker ingredient that helps treat acne, pigmentation, and irritation. It is a great option for sensitive skin.

What makes azelaic special?

The best thing about azelaic acid is it's gentleness. It's generally well-tolerated and safe to use alongside other actives like niacinamide or salicylic acid.

Unlike AHAs, azelaic acid will not make you photosensitive/sun sensitive.

You can find this ingredient naturally occurring in grains like wheat, rye, and barley. In cosmetics, azelaic acid is typically lab-made, which is more stable and effective.

Learn more about Azelaic Acid
Humectant, Skin Conditioning, Solvent

Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.

Another role of this ingredient is preventing a product from melting or freezing. Propylene glycol also adds antimicrobrial properties to a product, elongating product lifespan.

This ingredient is considered an organic alcohol and commonly added into both cosmetics and foods.

Those with sensitive skin or conditions may develop a rash when using this ingredient.

Learn more about Propylene Glycol

When to use

99 Routines
33% use in am
67% use in pm
68% use every day
When to use See routines that use it ->
769 Routines
40% use in am
60% use in pm
84% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

4.00
Overall rating
5
4
3
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1
What people say
Absorbs Well 50% Drying 50% Expensive 50%
4.07
Overall rating
5
4
3
2
1
What people say
Great Value 75% No Scent 50% Works Well 50%