# La Roche-Posay Mela B3 Serum for sensitive skin

**Lovi Fit: High fit for sensitive skin.**
Normal Skin Fit: High · Effectiveness: Average · Safety: High.

Page: https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/sensitive-skin

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

Brand: [La Roche-Posay](https://lovi.care/skincare/au/brands/la-roche-posay)
Category: [Serums and treatments](https://lovi.care/skincare/au/best/serums)

This fit is calculated for the concerns frequently associated with sensitive skin: redness, stinging, and reactions to new products. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

One of the best serums for sensitive skin.

## Why this fit

- Highly suitable for normal skin, this serum utilizes niacinamide and sodium hyaluronate to support your skin barrier and provide hydration, while capryloyl salicylic acid works to improve overall skin tone and texture.
- The formulation offers excellent brightening effects, though it lacks specialized ingredients to directly target your primary concerns of redness and irritation.
- The safety profile is excellent, with no risks of irritation for your sensitive skin due to the absence of prohibited or harsh ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/dry-skin): Average
- [Combination skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/sensitive-skin): High (this page)
- [Acne-prone skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/dark-spots): High
- [Mature skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/mature-skin): Average
- [Dry sensitive skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/dry-sensitive-skin): Average
- [Oily acne-prone skin](https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/oily-acne-prone-skin): High

## Key ingredients

Niacinamide, La Roche-Posay Thermal Spring Water, Melasyl, Cystoseira Tamariscifolia Extract, Sodium Hyaluronate

## What the research says

- Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer. ([The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/))
- Daily treatment with a facial serum containing multiple acids reduced post-inflammatory hyperchromia lesion grade and number by 29.4% at 56 days, and decreased skin oiliness by 30.7% at 7 days in Brazilian patients with acne vulgaris. ([Journal of Cosmetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/33617668/))
- Capryloyl salicylic acid peel reduced fine lines, wrinkles, and hyperpigmentation comparably to glycolic acid peel in 44 female volunteers, with no statistically significant differences between the two treatments. ([Journal of Cosmetic Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/19146601/))
- 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/))
- Balneotherapy with thermal water altered specific skin microbiota at genus and species levels in healthy female volunteers compared to tap water, which produced no significant microbiome changes. ([Life, 2023](https://pubmed.ncbi.nlm.nih.gov/36983902/))
- Malaysian thermal spring water as an adjunct to standard acne therapy improved skin hydration, reduced dryness and stinging, enhanced overall tolerability, and improved the acne disability index in patients with mild to moderate acne. ([The Medical Journal of Malaysia, 2024](https://pubmed.ncbi.nlm.nih.gov/38553920/))
- A 2% Sphingomonas xenophaga ferment extract cream applied twice daily for 4 weeks significantly decreased facial vascular disorder scores compared to vehicle in 86 Caucasian female subjects, alongside dose-dependent inhibition of pre-kallikrein activity in vitro. ([International Journal of Cosmetic Science, 2025](https://pubmed.ncbi.nlm.nih.gov/40545753/))
- 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/))

## What reviewers say

Based on a very large amount of data, users frequently praise this serum for its lightweight, non-sticky texture and its ability to fade post-acne marks and sun spots over time. Many report brighter, more even skin tone within a few weeks. A notable portion of reviewers found the results slow or nonexistent for stubborn hyperpigmentation and complained about the strong floral fragrance.

- Liked: Good texture (mostly mentioned)
- Liked: Brightens skin (often mentioned)
- Liked: Fades dark spots (often mentioned)
- Disliked: Strong fragrance (often mentioned)
- Liked: Gentle on skin (sometimes noted)
- Disliked: Ineffective for some (sometimes noted)
- Disliked: Caused irritation (rarely noted)
- Disliked: High price (rarely noted)

## How to apply

- Use your serum in the PM routine, starting 3 times a week before building up to daily use if your skin is happy.
- Apply the serum after cleansing and toning, but before putting on your moisturizer for the best results.
- Gently press 2-3 drops of the serum into your skin and wait a minute ⏱ for it to soak in.
- Since your skin is sensitive and easily irritated, apply the serum on completely dry skin to help keep it calm.
- Always do a patch test before your first use and avoid getting the serum too close to your eyes .
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### What makes La Roche-Posay Mela B3 Serum a great fit for sensitive skin?

La Roche-Posay Mela B3 Serum is a great fit for sensitive skin because it relies on gentle, soothing ingredients like niacinamide and sodium hyaluronate to hydrate and support your skin barrier. The formula also features capryloyl salicylic acid to help improve your skin tone and texture, and it is very safe with no harsh ingredients that might cause irritation.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/), [Journal of Cosmetic Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/19146601/)

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

This serum is a good fit for sensitive skin because it uses niacinamide and sodium hyaluronate to support your skin barrier and keep it hydrated. It also features capryloyl salicylic acid to help improve your skin tone and texture, all while maintaining an excellent safety profile without harsh ingredients.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/), [Journal of Cosmetic Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/19146601/)

### What does Niacinamide do for sensitive skin?

Niacinamide helps calm sensitive skin by strengthening the skin barrier and reducing redness and irritation. It is very well tolerated and may improve overall comfort and resilience with regular use.
Sources: [Cutis, 2005](https://pubmed.ncbi.nlm.nih.gov/16209160/), [Journal of Cosmetic Dermatology, 2004](https://pubmed.ncbi.nlm.nih.gov/17147561/)

### What does Thermal Spring Water do for sensitive skin?

Thermal spring water helps calm sensitive skin by reducing redness, stinging, and discomfort. It is unlikely to irritate easily and may help strengthen the skin barrier against daily stress.
Sources: [Journal of the European Academy of Dermatology and Venereology, 2020](https://pubmed.ncbi.nlm.nih.gov/32870553/), [The Medical Journal of Malaysia, 2024](https://pubmed.ncbi.nlm.nih.gov/38553920/)

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

This treatment serum goes in the evening routine after your cleansing and soothing toner steps, followed by your moisturizer. This timing offers extra safety around sun exposure, and the formula has a very safe profile that is unlikely to irritate your sensitive skin.

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

You can use this serum with retinol by applying it at night before your moisturizer, while introducing them slowly to keep your skin calm and comfortable.

### How often should I use this serum?

This serum is a great fit for your sensitive skin and works best when applied in the evening as part of your nighttime routine. The formulation is very gentle and unlikely to cause irritation, making it suitable for regular evening use to help brighten your skin and improve texture.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

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

This serum is unlikely to clog pores or cause breakouts for sensitive skin because it avoids harsh ingredients and features a very safe formulation. It helps improve skin texture without causing irritation, though a few reviewers have occasionally reported sensitivity.

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

It has no drying alcohol and contains fragrance (parfum).

## Alternatives for sensitive skin

- [Neogen Dermalogy Real Vitamin C Serum](https://lovi.care/skincare/au/p/neogen-dermalogy/real-vitamin-c-serum/for/sensitive-skin) — High fit — A$50.60 at Amazon
- [COSRX The Vitamin C 23 Serum](https://lovi.care/skincare/au/p/cosrx/the-vitamin-c-23-serum/for/sensitive-skin) — High fit — A$27.50 at Amazon
- [Skin1004 Probio-Cica Intensive Ampoule](https://lovi.care/skincare/au/p/skin1004/probio-cica-intensive-ampoule/for/sensitive-skin) — High fit — A$34.41 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/au/p/fresh/soy-face-cleanser/for/sensitive-skin) — Superior fit — A$73.61 at Amazon
- Soothing Toner: [Clarins Toning Lotion with Camomile](https://lovi.care/skincare/au/p/clarins/soothing-toning-lotion/for/sensitive-skin) — Superior fit — A$54.00 at Amazon
- Moisturizer with Sun Protection: [Bioderma Bioderma Photoderm Mineral SPF 50+](https://lovi.care/skincare/au/p/bioderma/photoderm-mineral-fluide-spf50/for/sensitive-skin) — Superior fit — A$24.49 at Amazon

## Where to buy

- Amazon.com.au: A$55.99 (https://www.amazon.com.au/dp/B0CM4B43DZ?tag=lovi-care-web-product-22&linkCode=osi&th=1&psc=1)
Prices checked 6 Nov 2026.

## Ingredients

Water, Dimethicone, Niacinamide, Glycerin, Propylene Glycol, Polysilicone-11, Silica, Bis-Peg Ppg-16 16 Peg Ppg-16 16 Dimethicone, Cystoseira Tamariscifolia Extract, 2-Mercaptonicotinoyl Glycine, Peg-20 Methyl Glucose Sesquistearate, Sodium Hyaluronate, Sodium Hydroxide, Sodium Thiosulfate, Carnosine, Poloxamer 338, Ammonium Polyacryloyldimethyl Taurate, Dipotassium Glycyrrhizate, Caprylic Capric Triglyceride, Capryloyl Salicylic Acid, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Pentylene Glycol, Octyldodecanol, Retinyl Palmitate, Tocopherol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Phenoxyethanol, Ci 17200 Red 33, Parfum
## 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/la-roche-posay/mela-b3-serum/for/sensitive-skin
- United Kingdom: https://lovi.care/skincare/uk/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Ireland: https://lovi.care/skincare/ie/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Germany: https://lovi.care/skincare/de/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- France: https://lovi.care/skincare/fr/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Italy: https://lovi.care/skincare/it/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Netherlands: https://lovi.care/skincare/nl/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Spain: https://lovi.care/skincare/es/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Canada: https://lovi.care/skincare/ca/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Australia: https://lovi.care/skincare/au/p/la-roche-posay/mela-b3-serum/for/sensitive-skin (this page)
- Singapore: https://lovi.care/skincare/sg/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/la-roche-posay/mela-b3-serum/for/sensitive-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/la-roche-posay/mela-b3-serum/for/sensitive-skin