The INKEY List Beta Hydroxy Acid (BHA) Serum Versus Symbiosis London Blemish Treatment Serum
Updated on February 26, 2025
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 5 ingredients in common
Cool Features
They both contain BHA and hyaluronic acid
Suited For
They're both likely to be good for fighting acne, dry skin, oily skin, reducing pores and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, 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
The INKEY List Beta Hydroxy Acid (BHA) Serum 13 ingredients
Symbiosis London Blemish Treatment Serum 12 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
The INKEY List Beta Hydroxy Acid (BHA) Serum 13 ingredients
Symbiosis London Blemish Treatment Serum 12 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterSodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateZinc PCA (or "zinc salt") differs slightly from zinc itself. PCA stands for pyrrolidone carboxylic acid. However, Zinc PCA comes from zinc.
It can help reduce redness, regulate sebum, and promote the general healing process of the skin.
Zinc PCA tends to be especially useful for those with oily, acne-prone skin. It's certainly an ingredient worth trying out!
Learn more about Zinc PCAPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The INKEY List Beta Hydroxy Acid (BHA) Serum 13 ingredients
Symbiosis London Blemish Treatment Serum 12 ingredients

Reviews
Here's what our community thinks
The INKEY List Beta Hydroxy Acid (BHA) Serum 13 ingredients
Game changer. This stuff is amazing for fungal acne, other BHA acids were too harsh for my sensitive skin and didn’t improve any of my concerns, but this stuff is strong and non irritating. Didn't give me any new breakouts just surfaced all of my pre-existing acne. Turned all my FA into white heads in a matter of weeks. This with the ordinary 5% lactic acid serum is completely reviving the texture Show more
Very good for acne
Saw an immediate overnight change in my inflammation overnight after using for the first time, haven't had any inflammatory whiteheads since I finished purging (which lasted 2 weeks) and my skin is slightly less oily. However it did nothing really for my sebaceous filaments.