# Cos De BAHA Azelaic Acid 10% Serum for mature skin

**Lovi Fit: Average fit for mature skin.**
Normal Skin Fit: High · Effectiveness: Average · Safety: Low Risk.

Page: https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for France.

Brand: [Cos De BAHA](https://lovi.care/skincare/fr/brands/cos-de-baha)
Category: [Serums and treatments](https://lovi.care/skincare/fr/best/serums)

This fit is calculated for the concerns frequently associated with mature skin: fine lines, wrinkles, and loss of firmness. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

Works for mature skin; other serums fit it better.

## Why this fit

- Suitable for normal skin due to niacinamide and panthenol, which support barrier repair and hydration, but azelaic acid offers moderate treatment for acne-prone skin, not your primary concern of wrinkles and fine lines.
- Aloe barbadensis leaf extract and panthenol provide general skincare benefits like soothing and hydration, which are supportive but not directly targeted at addressing wrinkles and fine lines.
- The product is generally safe for your normal skin, with a low risk of irritation from azelaic acid.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/oily-skin): High
- [Dry skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/dry-skin): High
- [Combination skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/sensitive-skin): High
- [Acne-prone skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/dark-spots): High
- [Mature skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin): Average (this page)
- [Dry sensitive skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/oily-acne-prone-skin): High

## Key ingredients

Azelaic Acid, Sodium Hyaluronate, Niacinamide, Panthenol Vitamin B5, Aloe Barbadensis Leaf Extract

## What the research says

- A new topical panthenol-containing emollient significantly improved transepidermal water loss reduction, stratum corneum hydration, and intercellular lipid lamellae length compared with control in healthy subjects without negatively impacting bacterial viability. ([The Journal of Dermatological Treatment, 2017](https://pubmed.ncbi.nlm.nih.gov/27425824/))
- Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment. ([American Journal of Clinical Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12113650/))
- A panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment. ([Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40613435/))
- Azelaic acid nanocrystal hydrogel 10% achieved a higher success rate and greater lesion reduction than azelaic acid cream 20% in patients with mild to moderate facial acne. ([Pharmaceutics, 2021](https://pubmed.ncbi.nlm.nih.gov/33923739/))
- Application of 15% azelaic acid gel significantly reduced post-inflammatory erythema and hyperpigmentation, decreased hemoglobin and melanin content, improved quality of life, and contributed to acne improvement in patients with mild to moderate acne compared to placebo. ([Dermatology and Therapy, 2024](https://pubmed.ncbi.nlm.nih.gov/38734843/))
- Topical application of a dermocosmetic containing Myrtus communis extract and azelaic acid reduced acne relapses and helped maintain remission compared to a light moisturizing cream in adult females in the acne maintenance phase over 16 weeks. ([Journal of the European Academy of Dermatology and Venereology, 2023](https://pubmed.ncbi.nlm.nih.gov/36729399/))
- Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control. ([Journal of Drugs in Dermatology, 2011](https://pubmed.ncbi.nlm.nih.gov/22052267/))
- Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction. ([Clinical Oral Investigations, 2022](https://pubmed.ncbi.nlm.nih.gov/34623507/))
- Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days. ([BMC Oral Health, 2019](https://pubmed.ncbi.nlm.nih.gov/31311529/))
- Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin. ([Journal of Cosmetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/33103316/))
- Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women. ([The Journal of Investigative Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/17882270/))
- Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging. ([Dermatologic Surgery, 2005](https://pubmed.ncbi.nlm.nih.gov/16029679/))
- Moisturizer containing 5% panthenol, madecassoside, and copper-zinc-manganese decreased adverse reactions and downtime after ablative fractional carbon dioxide laser resurfacing with comparable efficacy to 0.02% triamcinolone acetonide cream in 20 subjects. ([Journal of Cosmetic Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/30945430/))
- Topical dexpanthenol formulated in lipophilic vehicles improved stratum corneum hydration and reduced transepidermal water loss compared to vehicle control in humans. ([Arzneimittel-Forschung, 2000](https://pubmed.ncbi.nlm.nih.gov/10965426/))
- Hyaluronic acid, hyaluronic acid plus dexpanthenol, and isotonic saline nasal sprays all significantly improved dry nose symptoms over four weeks in 240 patients, with hyaluronic acid plus dexpanthenol providing superior nasal moisturisation compared to the other two. ([Auris, Nasus, Larynx, 2020](https://pubmed.ncbi.nlm.nih.gov/32067777/))
- A cream combining propolis, tea tree oil, and Aloe vera reduced erythema scars, acne severity index, and total lesion count better than erythromycin cream in sixty patients with mild to moderate acne vulgaris compared to placebo. ([Clinical Pharmacology, 2018](https://pubmed.ncbi.nlm.nih.gov/30588129/))
- Topical aloe vera gel significantly accelerated split-thickness skin graft donor-site healing compared to placebo in 12 patients, but showed no significant difference in pain relief. ([Plastic and Reconstructive Surgery, 2018](https://pubmed.ncbi.nlm.nih.gov/29649056/))
- Topical application of Aloe vera cream reduced postoperative pain at rest and during defecation, accelerated wound healing at two weeks, and decreased analgesic requirements in patients after open hemorrhoidectomy compared to placebo. ([Journal of Alternative and Complementary Medicine, 2010](https://pubmed.ncbi.nlm.nih.gov/20569031/))

## Why other serums fit mature skin better

- Caviar oil enhanced adipocyte differentiation in vitro, reduced MMP expression while increasing collagen and elastin formation ex vivo, and improved skin moisture, elasticity, and density in 102 participants over four weeks of Cavi Balm usage compared to baseline. ([In Vivo, 2023](https://pubmed.ncbi.nlm.nih.gov/37652485/))
- Chronomodulated daytime application of baicalin and nighttime application of palmitoyl tripeptide-1 synergistically improved skin luminance by 16.29%, nasolabial fold depth by -36.35%, and firmness by 24.35% in 30 female participants. ([Journal of Cosmetic Dermatology, 2026](https://pubmed.ncbi.nlm.nih.gov/41527525/))
- A topical serum containing vitamin C, vitamin E, and raspberry leaf cell culture extract improved skin color, elasticity, radiance, smoothness, scaliness, and wrinkles compared to the untreated contralateral side in fifty female volunteers. ([Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31975502/))

## What reviewers say

It is highly effective for acne-prone and sensitive skin, though some users note a tacky finish and occasional crystallization.

- Liked: Reduces redness (mostly mentioned)
- Liked: Affordable price (often mentioned)
- Liked: Fades scars (often mentioned)
- Liked: Gentle/non-irritating (often mentioned)
- Disliked: Sticky/tacky finish (often mentioned)
- Liked: Controls acne (sometimes noted)
- Disliked: Crystallization/grittiness (sometimes noted)
- Disliked: Causes breakouts (rarely noted)
- Disliked: Drying/tightness (rarely noted)

## How to apply

- Use this serum in your PM routine. Start by applying it 3 times a week, and work up to daily use if your skin likes it.
- Apply this serum after your toner and before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and let it absorb for a minute.
- You can apply the serum on dry skin for the best results against fine lines.
- Always do a patch test before your first use and avoid the sensitive eye area.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### How well does Cos De BAHA Azelaic Acid 10% Serum work for mature skin?

This serum works for mature skin, though other products fit it better because its ingredients focus more on soothing and hydration than on directly smoothing wrinkles and fine lines. To truly care for mature skin, a product of this type needs high-quality anti-aging ingredients and potent antioxidants to improve skin elasticity and target fine lines.

### Which ingredients make this serum a good fit for mature skin?

Niacinamide and panthenol make this serum a good fit for mature skin by supporting barrier repair and hydration. However, because wrinkles and fine lines are your main concern, this product needs potent antioxidants, hydrating components, and skin-repairing ingredients that directly target aging.
Sources: [The Journal of Dermatological Treatment, 2017](https://pubmed.ncbi.nlm.nih.gov/27425824/), [American Journal of Clinical Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12113650/)

### What does Azelaic Acid do for mature skin?

Azelaic acid helps mature skin by targeting dark spots and uneven tone, while supporting smoother texture and a more youthful look. It provides antioxidant benefits that may reduce signs of aging and protect skin from environmental stress.
Sources: [Frontiers in Medicine, 2026](https://pubmed.ncbi.nlm.nih.gov/42023095/), [Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/36056802/)

### What does Hyaluronic Acid do for mature skin?

Hyaluronic acid helps mature skin by deeply boosting moisture, improving elasticity, and smoothing the appearance of fine lines and wrinkles. Regular use keeps the skin looking plump and soft while supporting overall firmness and hydration.
Sources: [Journal of Drugs in Dermatology, 2011](https://pubmed.ncbi.nlm.nih.gov/22052267/), [Skin Research and Technology, 2024](https://pubmed.ncbi.nlm.nih.gov/38591218/)

### Where does this serum go in a skincare routine for mature skin?

This serum goes in the evening routine after cleansing and before moisturizing, as treatments with active ingredients are typically used at night for simplicity and extra safety around sun exposure. Because your primary concern is wrinkles and fine lines, mature skin needs targeted ingredients like peptides or retinoids that directly address signs of aging rather than general soothing and hydration.

### Can I use this serum with retinol, and in what order?

You can use this serum with retinol by applying the serum first and following with your retinol product, or by using them on alternating nights to keep your skin calm. This product is generally safe for normal skin with a low risk of irritation, but mature skin needs targeted ingredients like peptides and retinoids to effectively smooth fine lines and wrinkles.

### How often should I use this serum?

Apply this serum in your evening routine, starting once a week to see how your skin responds before gradually increasing frequency if well tolerated. Mature skin seeking smoother, firmer texture needs dedicated anti-aging ingredients like retinoids, peptides, or antioxidants that directly target fine lines and wrinkles.

### Can this serum clog pores, cause breakouts or purging for mature skin?

This serum is unlikely to cause breakouts for mature skin, and reviewer complaints of breakouts are low. However, mature skin looking to smooth wrinkles needs products with ingredients that directly target fine lines and firmness, such as retinoids or peptides.

### Is this serum fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for mature skin

- [Paula's Choice RESIST Super Antioxidant Concentrate Serum](https://lovi.care/skincare/fr/p/paula-s-choice/resist-super-antioxidant-concentrate-serum/for/mature-skin) — Superior fit — €57.00 at Amazon
- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/fr/p/skinceuticals/c-e-ferulic/for/mature-skin) — Superior fit — €139.99 at Amazon
- [La Prairie Skin Caviar Liquid Lift](https://lovi.care/skincare/fr/p/la-prairie/skin-caviar-liquid-lift/for/mature-skin) — High fit — €599.90 at Amazon

## Pairs well with

- Cleanser: [La Roche-Posay Hydrating Gentle Cleanser](https://lovi.care/skincare/fr/p/la-roche-posay/toleriane-hydrating-gentle-cleanser/for/mature-skin) — Superior fit — €28.02 at Amazon
- Hydrating Toner: [COSRX Propolis Synergy Toner](https://lovi.care/skincare/fr/p/cosrx/full-fit-propolis-synergy-toner/for/mature-skin) — Superior fit — €18.45 at Amazon
- Moisturizer: [Elizabeth Arden Ceramide Lift and Firm Night Cream](https://lovi.care/skincare/fr/p/elizabeth-arden/advanced-ceramide-lift-and-firm-night-cream/for/mature-skin) — Superior fit — €76.29 at Amazon

## Where to buy

- Amazon.fr: €22.86 (https://www.amazon.fr/dp/B0FCCLTDGH?tag=lovi-care-web-product06-21&linkCode=osi&th=1&psc=1)
Prices checked 5 Nov 2026.

## Ingredients

Aloe Barbadensis Leaf Extract, Propylene Glycol, Azelaic Acid, Polysorbate 20, 1,2-Hexanediol, Propanediol, Panthenol, Niacinamide, Sodium Hyaluronate, Camellia Sinensis Leaf Extract, Momordica Charantia Fruit Extract, Sambucus Nigra Flower Extract, Leontopodium Alpinum Extract, Witch Hazel Leaf Extract, Rosmarinus Officinalis Extract Rosemary Extract, Eucalyptus Globulus Leaf Extract, Thymus Vulgaris Extract, Aspalathus Linearis Extract
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- United Kingdom: https://lovi.care/skincare/uk/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Ireland: https://lovi.care/skincare/ie/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Germany: https://lovi.care/skincare/de/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- France: https://lovi.care/skincare/fr/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin (this page)
- Italy: https://lovi.care/skincare/it/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Netherlands: https://lovi.care/skincare/nl/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Spain: https://lovi.care/skincare/es/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Canada: https://lovi.care/skincare/ca/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Australia: https://lovi.care/skincare/au/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Singapore: https://lovi.care/skincare/sg/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/cos-de-baha/azelaic-acid-10-serum/for/mature-skin