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Theramid Azid 15% Azelaic Acid Treatment Versus Paula's Choice 10% Azelaic Acid Booster

Serum
Facial Treatment
Spanish Brand Spain
American Brand United States

Updated on August 07, 2024

Overview

What they are

These products are both cruelty-free and reef safe . They have a total of 6 ingredients in common

Suited For

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

Free From

They both do not contain any oils, parabens 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

Free from

Safety & Ethics

pH Level 4.75

Product acidity level

Spanish Brand

Brand country of origin

Free from

Safety & Ethics

American Brand

Brand country of origin

At a glance

Click on any of the items below to learn more

Ingredients, at a glance

What's in this product, and how it might affect your skin.

Notable Ingredients

Benefits

Concerns

Ingredients, at a glance

What's in this product, and how it might affect your skin.

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Azid 15% Azelaic Acid Treatment
Water Skin Conditioning, Solvent

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.

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Azelaic Acid Buffering, Masking
Helps reduce Skin Redness IconHelps reduce irritation IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne Icon

Azelaic acid is a naturally occurring acid derived from grains. This ingredient is effective in treating acne, rosacea, and other skin conditions.

Loved by users
7 Benefits
Learn more
Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.
Loved by users
2 Benefits
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Propanediol Solvent

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

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Glycereth-26 Humectant
0 / 0

Glycereth-26 is a synthetic ingredient and polyethylene glycol ether of Glycerin. Glycerin is already naturally found in your skin and helps keep your skin moisturized.

0 Com. / 0 Irr.
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Avena Sativa Kernel Flour Abrasive, Absorbent
Exfoliant Icon

Oatmeal flour is created by grinding down the kernels of oats. Oatmeal helps sooth, hydrate, and protect the skin.

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ExfoliantExfoliant Icon
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Carnosine Skin Conditioning

Carnosine is a dipeptide made from two amino acids.

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Acetyl Tetrapeptide-2 Skin Conditioning
Peptide Icon

This peptide is more commonly known as Thymulen 4 BG.

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PeptidePeptide Icon
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Ceramide NP Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Ceramide NP is a type of ceramide.

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CeramideCeramide Icon3 Benefits
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Ceramide EOP Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Ceramide EOP is a type of Ceramide.

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CeramideCeramide Icon3 Benefits
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Ceramide Ns Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Ceramide NS is a type of Ceramide. Ceramides are intercellular lipids naturally found in our skin that bonds dead skin cells together to create a barrier. They are known for their ability to hold water and thus are a great ingredient for dry skin.

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CeramideCeramide Icon3 Benefits
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Ceramide As Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Ceramide AS is a type of Ceramide.

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CeramideCeramide Icon3 Benefits
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Ceramide AP Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Ceramide AP is a type of Ceramide.

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CeramideCeramide Icon3 Benefits
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Gallyl Glucoside Antioxidant, Skin Conditioning
Antioxidant Icon

Gallyl Glucoside is an antioxidant.

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AntioxidantAntioxidant Icon
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Propyl Gallate Antioxidant, Perfuming
Antioxidant IconFragrance Icon

Propyl Gallate is an antioxidant and is a fragrance.

Mixed reviews
AntioxidantAntioxidant IconFragranceFragrance Icon
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Epigallocatechin Gallatyl Glucoside Antioxidant, Skin Conditioning
Antioxidant Icon

Epigallocatechin Gallatyl Glucoside is an antioxidant.

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AntioxidantAntioxidant Icon
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Daucus Carota Sativa Root Cell Culture Lysate Skin Conditioning

We don't have a description for Daucus Carota Sativa Root Cell Culture Lysate yet.

Not enough ratings
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Gossypium Herbaceum Callus Culture Skin Conditioning

We don't have a description for Gossypium Herbaceum Callus Culture yet.

Not enough ratings
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Sphingomonas Ferment Extract Skin Conditioning

We don't have a description for Sphingomonas Ferment Extract yet.

Disliked by users
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Ethylhexylglycerin Skin Conditioning

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

Mixed reviews
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Hydrogenated Lecithin Emulsifying, Skin Conditioning

Hydrogenated Lecithin is created from the hydrogenation of lecithin (a group of fatty acids). Hydrogenation is a chemical reaction between hydrogen and another element.

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Sucrose Distearate Emollient, Emulsifying, Skin Conditioning
0 / 2 Not safe for Fungal Acne Icon

Sucrose Distearate is made up of the sucrose (sugar) esthers of stearic acid. It is an emollient and emulsifier.

0 Com. / 2 Irr.
Disliked by users
Not safe for Fungal AcneNot safe for Fungal Acne Icon
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Glyceryl Stearate Emollient, Emulsifying
1 / 0 Not safe for Fungal Acne Icon

Glyceryl Stearate is a mix of glycerin and stearic acid.

1 Com. / 0 Irr.
Disliked by users
Not safe for Fungal AcneNot safe for Fungal Acne Icon
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Dipropylene Glycol Masking, Solvent

Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.

Disliked by users
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Dehydroacetic Acid Preservative
Preservative Icon

Dehydroacetic Acid is fungicide and bactericide. It is used as a preservative in cosmetics. Preservatives help elongate the shelf life of a product.

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PreservativePreservative Icon
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Caprylyl Glycol Emollient, Humectant, Skin Conditioning

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

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Phenoxyethanol Preservative
Preservative Icon

Phenoxyethanol 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.

Very disliked
PreservativePreservative Icon
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Triethanolamine Buffering, Emulsifying, Masking
2 / 0

Triethanolamine is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.

2 Com. / 0 Irr.
Very disliked
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Benzyl Alcohol Perfuming, Preservative, Solvent
Alcohol IconFragrance IconPreservative IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.

Very disliked
AlcoholAlcohol IconFragranceFragrance IconPreservativePreservative Icon6 Concerns
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Citric Acid Buffering, Masking
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

Disliked by users
AHAAHA Icon5 BenefitsMay worsen RosaceaMay worsen Rosacea Icon
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10% Azelaic Acid Booster
Water Skin Conditioning, Solvent

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.

Loved by users
Learn more
Azelaic Acid Buffering, Masking
Helps reduce Skin Redness IconHelps reduce irritation IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne Icon

Azelaic acid is a naturally occurring acid derived from grains. This ingredient is effective in treating acne, rosacea, and other skin conditions.

Loved by users
7 Benefits
Learn more
C12-15 Alkyl Benzoate Antimicrobial, Emollient, Skin Conditioning

C12-15 Alkyl Benzoate is made up of Benzoic Acid and long chain alcohols. It has a low molecular weight.

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Caprylic/Capric Triglyceride Masking, Skin Conditioning

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

Mixed reviews
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Methyl Glucose Sesquistearate Emollient, Emulsifying, Skin Conditioning
Not safe for Fungal Acne Icon

Methyl Glucose Sesquistearate isn't fungal acne safe.

Very disliked
Not safe for Fungal AcneNot safe for Fungal Acne Icon
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Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.
Loved by users
2 Benefits
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Cetearyl Alcohol Emollient, Emulsifying, Emulsion Stabilising
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.

2 Com. / 1 Irr.
Very disliked
Fatty AlcoholFatty Alcohol Icon3 Concerns
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Glyceryl Stearate Emollient, Emulsifying
1 / 0 Not safe for Fungal Acne Icon

Glyceryl Stearate is a mix of glycerin and stearic acid.

1 Com. / 0 Irr.
Disliked by users
Not safe for Fungal AcneNot safe for Fungal Acne Icon
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Dimethicone Emollient, Skin Conditioning, Skin Protecting
1 / 0 Silicon Icon

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration.

1 Com. / 0 Irr.
Very disliked
SiliconSilicon Icon
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Salicylic Acid Masking, Preservative, Skin Conditioning
BHA IconPreservative IconGood for Oily Skin IconGood for Minimizing Pores IconHelps fight Acne IconHelps brighten skin IconCan worsen Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.

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BHABHA IconPreservativePreservative Icon4 Benefits3 Concerns
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Adenosine Skin Conditioning
Good for Minimizing Pores IconGood for Scar Healing Icon

Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.

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2 Benefits
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Glycyrrhiza Glabra Root Extract Bleaching, Emollient, Skin Conditioning
Good for Dark Spots Icon

Glycyrrhiza Glabra Root Extract is an extract of the roots of Licorice. It has been found to have several benefits such as skin hydrating, conditioning, and soothing.

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Good for Dark SpotsGood for Dark Spots Icon
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Boerhavia Diffusa Root Extract Skin Protecting
Helps reduce irritation Icon

Boerhavia Diffusa Root Extract comes from the Boerhavia Diffusa tree, or more commonly known as punarnava, red spiderling, spreading hogweed, or tarvine.

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Helps reduce irritationHelps reduce irritation Icon
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Allantoin Skin Conditioning, Skin Protecting, Soothing
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

0 Com. / 0 Irr.
Loved by users
4 Benefits
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Bisabolol Masking, Skin Conditioning, Soothing
Helps reduce irritation Icon

Bisabolol is famous for its skin soothing properties. It does this by blocking inflammatory signals, helping to reduce your body's reaction to irritation.

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Helps reduce irritationHelps reduce irritation Icon
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Cyclopentasiloxane Emollient, Skin Conditioning, Solvent
Silicon Icon

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

Disliked by users
SiliconSilicon Icon
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Xanthan Gum Emulsifying, Emulsion Stabilising, Gel Forming

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

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Sclerotium Gum Emulsion Stabilising, Skin Conditioning

Sclerotium Gum is a polysaccharide gum made by the fungus, Sclerotium rolfssii. It is similar to xanthan gum.

Mixed reviews
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Propanediol Solvent

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Liked by users
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Butylene Glycol Humectant, Masking, Skin Conditioning
1 / 0 Helps hydrate Dry Skin Icon

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

1 Com. / 0 Irr.
Mixed reviews
Helps hydrate Dry SkinHelps hydrate Dry Skin Icon
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Phenoxyethanol Preservative
Preservative Icon

Phenoxyethanol 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.

Very disliked
PreservativePreservative Icon
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Ingredients Explained

These ingredients are found in both products.

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

Skin Conditioning, Solvent
Loved

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 Water
Buffering, Masking
Loved

Azelaic acid is a naturally occurring acid derived from grains. This ingredient is effective in treating acne, rosacea, and other skin conditions.

It has been shown to reduce the growth of acne-causing bacteria and helps reduce inflammation. On top of that, it helps reduce the production of sebum and unclog pores.

Azelaic Acid also has antioxidant properties. Antioxidants protect our skin cells from free-radical damage.

One of the main benefits of azelaic acid is that it is gentle and well-tolerated by most people.

Fun fact: The lab-created form of azelaic acid is typically used within cosmetic products for its shelf-stability.

Learn more about Azelaic Acid
Humectant, Skin Conditioning, Skin Protecting
Loved

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.

As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.

Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.

Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.

In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.

This ingredient is organic, colorless, odorless, and non-toxic.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Learn more about Glycerin
Solvent
Liked

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Propanediol is not likely to cause sensitivity and considered safe to use.

It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol
Emollient, Emulsifying
Disliked

Glyceryl Stearate is a mix of glycerin and stearic acid.

It is used to stabilize the mixing of water and oil ingredients. By preventing these ingredients from separating, it can help elongate shelf life. It can also help thicken the product's texture.

As an emollient, it helps soften skin and supports barrier-replenishing ingredients.

In cosmetics, Glyceryl Stearate is often made from vegetable oils or synthetically produced.

This ingredient may not be fungal-acne safe

Fun fact: The human body also creates Glyceryl Stearate naturally.

Learn more about Glyceryl Stearate
Preservative
Very Disliked

Phenoxyethanol 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.

When to use

63 Routines
49% use in am
51% use in pm
84% use every day
When to use See routines that use it ->
630 Routines
43% use in am
57% use in pm
83% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Theramid Azid 15% Azelaic Acid Treatment 30 ingredients

4.8 /5
from 4 ratings
Works Well (3) Light (3) Absorbs Well (3)
sarape's avatar

Sara

11 months ago · Combination Skin
Review

One of my favorite products. If you're looking for an Azelaic Acid treatment, this is the right choice. It has the highest concentration you would...

One of my favorite products. If you're looking for an Azelaic Acid treatment, this is the right choice. It has the highest concentration you would find on an over-the-counter product (15%), combined with Ceramides and other soothing ingredients that will calm your skin and redness. Aside from rosacea, you can also use it for acne because it will soothe your breakouts and help fading the post-inflammatory hyperpigmentation. Is a very lightweight formula that gets absorbed super easy and rarely pills, so you won't find it hard to combine it with other products on your routine. The only thing that I can complain about is the smell, it reminds me of some old cheese, but I don't mind it since it's very subtle and the serum has an amazing performance.

Lapaki's avatar

Lapaki

5 months ago · Dry Skin
Review

Theramid's AZID Azelaic Acid Treatment is indeed as good as the reviews praise it. The vegan and cruelty-free serum contains a whopping 15%...

Theramid's AZID Azelaic Acid Treatment is indeed as good as the reviews praise it. The vegan and cruelty-free serum contains a whopping 15% concentration of azelaic acid, five different types of ceramides, and avena sativa/collodial oatmeal. It can be used to target several concerns - I particularly use it to combat my hyperpigmentation and rosacea flare-ups. The lightweight serum absorbs quickly and hasn’t pilled with my skincare so far. I've been using it for some time and will continue to do so.

However, I can only rate it 4 stars. Since the last formula change, the smell has become unpleasant - reminding me of vomit or other digestive fluids. It’s strong enough that I actually stop breathing through my nose when applying it, lol. If this ever changes again, I’ll gladly upgrade my rating. Despite this, it’s still an amazing serum with impressive results.

Paula's Choice 10% Azelaic Acid Booster 21 ingredients

3.4 /5
from 8 ratings
Broke Me Out (2) Doesn't Work (1) Expensive (1)
thesunrising's avatar

Mia

9 months ago · Normal Skin
Review

Did nothing for my fungal acne. Actually did nothing at all.
(Compared to my cheap no-name Russian brand Azelaic acid cream which worked wonders).

BubbIes's avatar

BubbIes

10 months ago · Combination Skin
Review

Paula's Choice at it again with cetearyl alcohol high up on the ingredient list. I'm disappointed by their ingredients fairly consistently now.