# Osmosis Skincare Renew Level 4 Vitamin A Serum for sensitive skin

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

Page: https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-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 Ireland.

Brand: Osmosis Skincare
Category: [Serums and treatments](https://lovi.care/skincare/ie/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.

Works for sensitive skin; other serums fit it better.

## Why this fit

- Offers moderate rejuvenation for normal skin, as retinal and palmitoyl tripeptide-38 work to minimize fine lines and wrinkles.
- Niacinamide and epilobium angustifolium stem extract provide general soothing and barrier support, which are beneficial but not directly targeted for your redness and irritation.
- The product is safe for your sensitive skin, with no risks of irritation due to the absence of harsh ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/oily-skin): High
- [Dry skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/dry-skin): Low
- [Combination skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin): Average (this page)
- [Acne-prone skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/dark-spots): Average
- [Mature skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/mature-skin): Average
- [Dry sensitive skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/dry-sensitive-skin): Low
- [Oily acne-prone skin](https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/oily-acne-prone-skin): High

## Key ingredients

Vitamin A, Niacinamide, Retinal, Palmitoyl Tripeptide-38, Sodium Hyaluronate

## What the research says

- Over-the-counter retinol products provided only weak evidence for a mild ameliorating effect on fine facial skin wrinkle lines in randomized, double-blind, vehicle-controlled trials, and major methodological flaws call the validity of positive results into question. ([The Journal of Clinical and Aesthetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/34980969/))
- A cosmetic niacinamide/peptide/retinyl propionate regimen significantly improved periorbital wrinkle appearance relative to a 0.02% tretinoin regimen at 8 weeks with comparable benefits at 24 weeks, while demonstrating significantly better tolerability in 196 women. ([The British Journal of Dermatology, 2010](https://pubmed.ncbi.nlm.nih.gov/20374604/))
- A novel triple-active cosmetic formulation containing 4-hexylresorcinol, retinyl propionate, and niacinamide improved the visual appearance of photoageing similarly to 0.02% tretinoin and reversed a consensus gene signature associated with ageing in female adults while causing less skin irritation. ([International Journal of Cosmetic Science, 2024](https://pubmed.ncbi.nlm.nih.gov/38685700/))
- 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/))
- Twice daily application of retinaldehyde 0.1% and 0.05% creams for 3 months improved skin texture and hydration and reduced transepidermal water loss in 40 female Korean volunteers, with only the 0.1% cream significantly improving the melanin index. ([Journal of Cosmetic Dermatology, 2018](https://pubmed.ncbi.nlm.nih.gov/29663701/))
- Topical retinaldehyde demonstrated significant antibacterial activity against gram-positive bacteria both in vitro and in vivo, leading to decreased bacterial counts without inducing resistance. ([Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12218231/))
- Topical 0.05% retinaldehyde applied over 1 year significantly increased epidermal thickness of the temple and cutaneous elasticity compared to an emollient control group in 40 aging skin patients. ([Dermatology, 1999](https://pubmed.ncbi.nlm.nih.gov/10473959/))
- 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/))

## Why other serums fit sensitive skin better

- Topical application of TAT-SOD significantly suppresses UVB-induced erythema formation, blood flow rise, and apoptotic sunburn cell formation in human volunteers compared to a vehicle control. ([European Journal of Pharmaceutics and Biopharmaceutics, 2016](https://pubmed.ncbi.nlm.nih.gov/27460952/))

## What reviewers say

Based on limited data, users find this serum to be a highly effective anti-aging treatment that smooths fine lines and refines skin texture without causing irritation. It is frequently praised for its gentle, hydrating formula and its ability to deliver a noticeable glow. Some users report peeling if the product is overused, and a moderate number find the price point to be high.

- Liked: Gentle & non-irritating (mostly mentioned)
- Liked: Effective anti-aging (often mentioned)
- Liked: Improves texture & tone (often mentioned)
- Liked: Hydrating formula (sometimes noted)
- Disliked: High price point (sometimes noted)
- Disliked: Dispenser issues (rarely noted)
- Disliked: Peeling if overused (rarely noted)
- Disliked: Yellow tint (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

### How well does Osmosis Renew Level 4 work for sensitive skin?

This serum works moderately well for sensitive skin, though other products fit it better. A product of this type needs ingredients that calm redness and soothe irritation while keeping the skin safe.

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

Niacinamide and epilobium angustifolium stem extract help calm your skin and support its barrier, while retinal and palmitoyl tripeptide-38 smooth lines with a safe profile. Because sensitive skin needs treatments that specifically target redness and irritation with soothing ingredients, this serum works well enough though other options fit it better.

### What does Vitamin A do for sensitive skin?

Vitamin A helps smooth fine lines, even out skin tone, and improve texture for sensitive skin when you choose gentle formulas and start slowly. Lower strengths and supportive ingredients help reduce the likelihood of dry, red, or irritated skin.
Sources: [Journal of Drugs in Dermatology, 2004](https://pubmed.ncbi.nlm.nih.gov/15624747/), [Journal of Drugs in Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/39496127/)

### 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/)

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

This treatment serum goes in the evening routine for sensitive skin. A product of this type needs calming ingredients and barrier support to keep redness comfortable.

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

You can use this serum with vitamin C by applying vitamin C in the morning and this treatment in the evening to keep your sensitive skin calm and avoid irritation.

### How often should I use this serum?

This serum works well when used in the evening once a week to start, and you can carefully use it more often if your skin tolerates it well and sees good results. Sensitive skin needs products with calming plant extracts and soothing barrier support ingredients.

### 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, though it may cause some peeling if you overuse it. Sensitive skin needs products with gentle soothing ingredients and non-irritating hydrators that support the skin barrier without causing congestion.

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

It contains fragrance (benzyl alcohol) and drying alcohol (alcohol denat).

## Alternatives for sensitive skin

- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/ie/p/skinceuticals/c-e-ferulic/for/sensitive-skin) — High fit — €185.00 at Amazon
- [Neogen Dermalogy Real Vitamin C Serum](https://lovi.care/skincare/ie/p/neogen-dermalogy/real-vitamin-c-serum/for/sensitive-skin) — High fit — €29.07 at Amazon
- [COSRX The Vitamin C 23 Serum](https://lovi.care/skincare/ie/p/cosrx/the-vitamin-c-23-serum/for/sensitive-skin) — High fit — €22.51 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/ie/p/fresh/soy-face-cleanser/for/sensitive-skin) — Superior fit — €56.86 at Amazon
- Soothing Toner: [SKIN1004 Centella Asiatica Toning Toner](https://lovi.care/skincare/ie/p/skin1004/centella-asiatica-toning-toner/for/sensitive-skin) — Superior fit — €21.81 at Amazon
- Moisturizer with Sun Protection: [Clinique Mineral Sunscreen Fluid for Face SPF 50](https://lovi.care/skincare/ie/p/clinique/broad-spectrum-spf-50-mineral-sunscreen-fluid-for-face/for/sensitive-skin) — Superior fit — €39.35 at Amazon

## Where to buy

No store in Ireland has a checked price for this product, so the page shows none.

## Ingredients

Water, Pentylene Glycol, Niacinamide, Phosphatidylcholine, Glycerin, Asiaticoside, Cyclodextrin, Caprooyl Tetrapeptide-3, Chlorella Vulgaris Extract, Epilobium Angustifolium Stem Extract Flower Leaf, Palmitoyl Tripeptide-38, Sodium Hyaluronate, Lactic Acid, Thioctic Acid, Fulvic Acid, Dimethyl Sulfone, Retinal, Beta-Glucan, Hydroxyproline, Grapefruit Peel Oil, Santalum Austrocaledonicum Oil Wood Sandalwood Oil Wood, Rubus Chamaemorus Berry Seed Oil Cloud Berry Seed Oil, Lonicera Caprifolium Flower Extract Honeysuckle Flower Extract, Lonicera Japonica Flower Extract Honeysuckle Flower Extract, Dextran, Hydroxypropyl Cyclodextrin, Xanthan Gum, Alcohol Denat, Potassium Sorbate, Sodium Hydroxide, Benzyl Alcohol
## 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/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- United Kingdom: https://lovi.care/skincare/uk/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Ireland: https://lovi.care/skincare/ie/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin (this page)
- Germany: https://lovi.care/skincare/de/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- France: https://lovi.care/skincare/fr/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Italy: https://lovi.care/skincare/it/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Netherlands: https://lovi.care/skincare/nl/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Spain: https://lovi.care/skincare/es/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Canada: https://lovi.care/skincare/ca/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Australia: https://lovi.care/skincare/au/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Singapore: https://lovi.care/skincare/sg/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/osmosis-skincare/renew-level-4-vitamin-a-serum/for/sensitive-skin