What is the best combination of products to combat open comedones (blackheads)?

Combining the imperfections day serum with the targeted imperfections serum or the purifying botanical blend is recommended.

Can the product be used in combination with other skin care products?

There are no contraindications to using these products before a usual skincare routine. Individual precautions for use can be found on each product page or via the Routine tool on the app.

Is the product comedogenic?

Occlusive elements such as mineral oils are excluded from the products to prevent the formation of imperfections. The list of prohibited ingredients can be checked here: https://www.typology.com/carnet/notre-liste-dingredients-prohibes

At what age can I start using the product?

Products are suitable for use from the age of 10, unless otherwise specified in the usage precautions.

The serum is recommended in the morning only, is there any contraindication or can it also be applied in the evening?

There are no contraindications for using the serum in the evening.

Can this serum replace the other Typology imperfections serums? If so, which ones?

The serum can replace other blemish serums for morning and evening use. It is still advisable to combine different active ingredients in a routine for optimal long-term results.

Can you combine different blemish-fighting products?

Combining different blemish-fighting products is possible. However, some active ingredients should only be used at night (such as salicylic acid) and are not compatible with each other (such as salicylic acid with AHA).

Is the serum suitable for pregnant or breast-feeding women?

The serum is not contraindicated for individuals who are pregnant or breastfeeding. If there are any restrictions, they will be mentioned in the precautions for use section. The full list of products not recommended can be found on this page: https://www.typology.com/carnet/quels-sont-les-actifs-interdits-aux-femmes-enceintes

Day Serum for Blemishes - 3% Succinic Acid + Copper PCA

Name: Day Serum for Blemishes — 3% Succinic Acid + Copper PCA
Brand: Typology Paris
SKU: LAB-1032
Price: 57.5 USD
Availability: InStock
Rating: 4.1 (81 reviews)

Free shipping starts at $60

Complimentary gift With every purchase over $100

This product is Made in France . Vegan . 100/100 Yuka Score

Melissa L.

Age range (35-44 years old) — Sensitive skin

This serum is super effective at controlling sea production and has absolutely minimized my breakouts. I think using it consistently every day is key!

United States, May 21, 2025

Day Serum for Blemishes - 3% Succinic Acid + Copper PCA

Directions

Anti-Blemish

Blemishes are the result of an imbalance in the skin, primarily caused by three factors: an overproduction of sebum, an accumulation of dead skin cells on the surface (hyperkeratinization), and a proliferation of the bacteria Cutibacterium acnes.

This anti-blemish serum targets the three main factors responsible for imperfections. With its antibacterial and exfoliating properties, succinic acid slows the proliferation of C. acnes while limiting skin thickening. Meanwhile, copper PCA helps to rebalance sebum production. In synergy, these active ingredients not only reduce various types of blemishes but also refine skin texture.

Main active ingredients
Succinic Acid:
Derived from a biofermentation process, succinic acid is an organic compound with antibacterial properties. It specifically targets Cutibacterium acnes, the bacteria involved in the formation of blemishes, and inhibits its growth. Succinic acid also regulates the proliferation of epidermal cells, thereby limiting skin thickening. This helps prevent pore obstruction and minimizes the risk of new blemishes forming. Finally, succinic acid inhibits the release of certain pro-inflammatory molecules, reducing redness associated with inflammatory blemishes.
Copper PCA:
Known for its sebum-regulating effects, the copper-PCA complex is a valuable ally for combination to oily skin. By tightening pores and reducing the activity of sebaceous glands, copper helps to prevent blemishes. Additionally, it disrupts the metabolism of bacteria and inhibits their growth. PCA, on the other hand, promotes the synthesis of filaggrin, thereby strengthening the skin barrier and preventing water loss.
Ingredients
Aqua (Water), Pentylene Glycol, Succinic Acid, Arginine, Copper PCA, Urtica Dioica (Nettle) Leaf Extract, Xanthan Gum, Sodium Hydroxide, Hydroxyacetophenone, Glycerin.
98% naturally-derived.
We regularly update the lists of ingredients used in the composition of our products. Before using our products, please read the ingredients list on its packaging label to ensure that the ingredients are suitable for your personal use.

FAQ

All your frequently asked questions about Day Serum for Blemishes — 3% Succinic Acid + Copper PCA

What is the best combination of products to combat open comedones (blackheads)?
Combining the imperfections day serum with the targeted imperfections serum or the purifying botanical blend is recommended.
Can the product be used in combination with other skin care products?
There are no contraindications to using these products before a usual skincare routine. Individual precautions for use can be found on each product page or via the Routine tool on the app.
Is the product comedogenic?
Occlusive elements such as mineral oils are excluded from the products to prevent the formation of imperfections. The list of prohibited ingredients can be checked here: https://www.typology.com/carnet/notre-liste-dingredients-prohibes
At what age can I start using the product?
Products are suitable for use from the age of 10, unless otherwise specified in the usage precautions.
The serum is recommended in the morning only, is there any contraindication or can it also be applied in the evening?
There are no contraindications for using the serum in the evening.
Can this serum replace the other Typology imperfections serums? If so, which ones?
The serum can replace other blemish serums for morning and evening use. It is still advisable to combine different active ingredients in a routine for optimal long-term results.
Can you combine different blemish-fighting products?
Combining different blemish-fighting products is possible. However, some active ingredients should only be used at night (such as salicylic acid) and are not compatible with each other (such as salicylic acid with AHA).
Is the serum suitable for pregnant or breast-feeding women?
The serum is not contraindicated for individuals who are pregnant or breastfeeding. If there are any restrictions, they will be mentioned in the precautions for use section. The full list of products not recommended can be found on this page: https://www.typology.com/carnet/quels-sont-les-actifs-interdits-aux-femmes-enceintes

Reviews

4.1

This product is rated 4.1 out of 5 stars. We have collected more than 81 reviews.

Filter

Aline A. Verified buyer France, July 22, 2025
- Skin Type: Oily
- Age range: 35-44 years old
- Sensitive skin: Yes
- Skin Typology: DE⁽⁺⁾
The essential!
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
Tested and approved! Finally, the product I needed to reduce my imperfections. I haven't had any pimples on my face since I started using it, and it also works as a mattifying base before my tinted serum... in short,…
Translated from French.
Margot W. Verified buyer France, February 9, 2025
- Skin Type: Combination
- Age range: 18-24 years old
I recommend it!
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
In just one week, my pimples have already diminished! Miraculous :)
Translated from French.
Fanny D. Verified buyer France, March 31, 2025
- Skin Type: Combination
- Age range: 18-24 years old
- Sensitive skin: Yes
A real difference!
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
I bought this serum about a month ago and it has already become an essential part of my skincare routine. I use it every morning and I can see a real difference in my skin. I have fewer imperfections, my…
Translated from French.
Lua N. Verified buyer France, March 31, 2025
- Skin Type: Normal
- Age range: 25-34 years old
- Sensitive skin: Yes
Incredible
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
Thanks to this serum I have FINALLY conquered the micro cysts!!! All the micro-cysts on my chin and at the edge of my lips have disappeared! My pores are closed. My skin has never looked better! I had adult acne from the…
Translated from French.
Aude A. Verified buyer France, June 25, 2025
- Skin Type: Combination
- Age range: 35-44 years old
- Sensitive skin: Yes
A must-have.
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
I've been using this serum for a month and the results are visible! My skin is smoother, I have fewer breakouts, and it doesn't feel tight. I can't live without this serum!
Translated from French.
Noemie G. Verified buyer France, January 7, 2025
- Skin Type: Dry
- Age range: 35-44 years old
- Sensitive skin: Yes
Magic
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
Blemishes disappear after about 7 to 10 days
Translated from French.
Manon M. Verified buyer France, May 7, 2025
- Skin Type: Combination
- Age range: 25-34 years old
- Sensitive skin: Yes
- Skin Typology: VE^(-)
Very good
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
I've been using it daily for 1 month now and I'm starting to see a real reduction in my imperfections and my skin is really clearer. It's a product I'd recommend!
Translated from French.
Morgane B. Verified buyer France, January 18, 2025
- Skin Type: Combination
- Age range: 18-24 years old
Real results
About Day Serum for Blemishes 3% Succinic Acid + Copper PCA
For several years now, I've been looking for cosmetics that would reduce my blackheads, tighten my pores and make my pimples disappear. This product has done just that! Top, I'd recommend it!
Translated from French.

L39 - Day Serum for Blemishes
3% Succinic Acid + Copper PCA

Directions

How to use it

Is this serum suitable for your skin typology?

Recyclable glass bottle

Anti-Blemish

Main active ingredients

Ingredients

FAQ

What is the best combination of products to combat open comedones (blackheads)?

Can the product be used in combination with other skin care products?

Is the product comedogenic?

At what age can I start using the product?

The serum is recommended in the morning only, is there any contraindication or can it also be applied in the evening?

Can this serum replace the other Typology imperfections serums? If so, which ones?

Can you combine different blemish-fighting products?

Is the serum suitable for pregnant or breast-feeding women?

Reviews

L39 - Day Serum for Blemishes 3% Succinic Acid + Copper PCA

Directions

How to use it

Is this serum suitable for your skin typology?

Recyclable glass bottle

Anti-Blemish

Main active ingredients

Ingredients

FAQ

What is the best combination of products to combat open comedones (blackheads)?

Can the product be used in combination with other skin care products?

Is the product comedogenic?

At what age can I start using the product?

The serum is recommended in the morning only, is there any contraindication or can it also be applied in the evening?

Can this serum replace the other Typology imperfections serums? If so, which ones?

Can you combine different blemish-fighting products?

Is the serum suitable for pregnant or breast-feeding women?

Reviews

L39 - Day Serum for Blemishes
3% Succinic Acid + Copper PCA