# Isntree C-Niacin Toning Ampoule for sensitive skin

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

Page: https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin

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

Brand: [Isntree](https://lovi.care/skincare/ca/brands/isntree)
Category: [Serums and treatments](https://lovi.care/skincare/ca/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.

A great choice for sensitive skin; a few serums fit it even better.

## Why this fit

- Excellent suitability for your normal skin and goals of reducing redness and irritation is provided by the high concentrations of 3-O-Ethyl Ascorbic Acid and Niacinamide, which also brighten and even your skin tone.
- Dipotassium Glycyrrhizate and Aloe Barbadensis Leaf Extract further soothe inflammation and support skin barrier function, making it a great choice for your sensitive skin.
- The formulation is safe for your sensitive skin, containing no harsh or prohibited ingredients that could cause irritation.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/oily-skin): High
- [Dry skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/dry-skin): Superior
- [Combination skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin): High (this page)
- [Acne-prone skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/acne-prone-skin): Superior
- [Skin with dark spots](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/dark-spots): High
- [Mature skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/oily-acne-prone-skin): Superior

## Key ingredients

Niacinamide, 3-O-Ethyl Ascorbic Acid Ascorbic Acid, Hippophae Rhamnoides Fruit Extract, Sodium Hyaluronate, Aloe Barbadensis Leaf Extract

## What the research says

- A multi-component dissolving microneedle patch loaded with glabridin, 3-O-ethyl-L-ascorbic acid, and tranexamic acid effectively reduced chloasma and age spots while demonstrating safety in clinical evaluation, alongside significant antioxidant, anti-tyrosinase, and melanin-reduction effects in vitro and in vivo. ([Polymers, 2023](https://pubmed.ncbi.nlm.nih.gov/37571190/))
- 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/))
- A topical formulation containing panthenol, niacinamide, and dipotassium glycyrrhizate increased skin hydration by 74.1% and reduced transepidermal water loss by 13.5% at 28 days compared to baseline and untreated control in 35 individuals with xerosis. ([Journal of Cosmetic Dermatology, 2026](https://pubmed.ncbi.nlm.nih.gov/42108609/))
- 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/))
- Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers. ([Experimental Dermatology, 2003](https://pubmed.ncbi.nlm.nih.gov/12823436/))
- Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation. ([Journal of Periodontology, 2009](https://pubmed.ncbi.nlm.nih.gov/19186973/))
- Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream. ([Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/34910367/))
- Topical application of a sea buckthorn fruit extract formulation significantly reduced skin sebum secretion in 10 healthy human volunteers compared to the control base over an 8-week period. ([Journal of Pharmacy & Bioallied Sciences, 2010](https://pubmed.ncbi.nlm.nih.gov/21814424/))
- Topical emulsions containing Hippophae rhamnoides and Cassia fistula plant extracts significantly reduced skin sebum contents compared to placebo in patients with grade I and grade II acne vulgaris. ([Postepy Dermatologii I Alergologii, 2014](https://pubmed.ncbi.nlm.nih.gov/25254008/))
- Topical application of a 5% Hippophae rhamnoides oil-in-water emulsion significantly improved skin hydration (p=0.0003) and transepidermal water loss (p=0.0087) compared to a placebo base formulation in 13 healthy male subjects over 84 days. ([Pakistan Journal of Pharmaceutical Sciences, 2014](https://pubmed.ncbi.nlm.nih.gov/25362595/))
- 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/))
- 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/))

## What reviewers say

This ampoule is frequently praised for its lightweight, fast-absorbing texture and its ability to gently brighten the skin, providing a natural glow. It is well-tolerated by sensitive and acne-prone skin types. Some users report that results are subtle and require consistent long-term use, with a few experiencing minor breakouts or noting the watery consistency can be difficult to handle.

- Liked: Lightweight texture (mostly mentioned)
- Liked: Brightens and glows (often mentioned)
- Liked: Gentle on sensitive skin (often mentioned)
- Liked: Hydrating (sometimes noted)
- Disliked: Slow or minimal results (sometimes noted)
- Disliked: Minor breakouts (rarely noted)
- Disliked: Runny consistency (rarely noted)
- Disliked: Slight tackiness (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 Isntree C-Niacin Toning Ampoule a great fit for sensitive skin?

This product is a great fit because it uses soothing ingredients like aloe vera and dipotassium glycyrrhizate to calm inflammation and support your skin barrier. It also relies on high concentrations of niacinamide and vitamin C to brighten your skin without harsh additives that might cause irritation.
Sources: [Journal of Cosmetic Dermatology, 2026](https://pubmed.ncbi.nlm.nih.gov/42108609/)

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

Niacinamide and 3-O-Ethyl Ascorbic Acid make this ampoule a great fit because they help brighten your skin tone and reduce redness. Additionally, Dipotassium Glycyrrhizate and Aloe Barbadensis Leaf Extract calm inflammation and support your skin barrier, while the formulation is safe and unlikely to cause irritation.
Sources: [Journal of Cosmetic Dermatology, 2026](https://pubmed.ncbi.nlm.nih.gov/42108609/), [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

### 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 3-O-Ethyl Ascorbic Acid do for sensitive skin?

3-O-Ethyl Ascorbic Acid helps brighten dark spots and even out skin tone while remaining gentle enough to keep sensitive skin calm and smooth. This vitamin C derivative is unlikely to cause irritation when used in a daily routine.
Sources: [Pharmaceutics, 2024](https://pubmed.ncbi.nlm.nih.gov/38794349/), [Pharmaceutics, 2023](https://pubmed.ncbi.nlm.nih.gov/36986679/)

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

This treatment goes in the evening routine after cleansing and toning, which keeps things simple and safe around sun exposure. It is a great fit for sensitive skin because it uses soothing ingredients like aloe and licorice root extract to calm redness without harsh irritants.

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

You can use this ampoule with retinol by applying the ampoule first to calm and brighten your skin, followed by your retinol. This product is a great fit for sensitive skin because it uses soothing ingredients like aloe and licorice root extract to help prevent irritation.

### How often should I use this ampoule?

This ampoule is a great fit for your sensitive skin and is used in the evening as part of your routine. It helps calm redness and brighten your skin tone safely without harsh ingredients that might cause irritation.
Sources: [Polymers, 2023](https://pubmed.ncbi.nlm.nih.gov/37571190/)

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

This ampoule is unlikely to cause breakouts or clog pores for sensitive skin, as it has a very low risk of minor breakouts based on reviews and contains no harsh ingredients. Its formulation includes soothing extracts that help calm irritation safely.

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

Yes, it has no fragrance and no drying alcohol.

## Alternatives for sensitive skin

- [COSRX The Vitamin C 23 Serum](https://lovi.care/skincare/ca/p/cosrx/the-vitamin-c-23-serum/for/sensitive-skin) — High fit — CA$33.98 at Amazon
- [Skin1004 Probio-Cica Intensive Ampoule](https://lovi.care/skincare/ca/p/skin1004/probio-cica-intensive-ampoule/for/sensitive-skin) — High fit — CA$24.44 at Amazon
- [The Ordinary Matrixyl 10% + HA](https://lovi.care/skincare/ca/p/the-ordinary/matrixyl-10-ha/for/sensitive-skin) — High fit — CA$14.40 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/ca/p/fresh/soy-face-cleanser/for/sensitive-skin) — Superior fit — CA$44.95 at Amazon
- Soothing Toner: [Clarins Toning Lotion with Camomile](https://lovi.care/skincare/ca/p/clarins/soothing-toning-lotion/for/sensitive-skin) — Superior fit — CA$49.00 at Amazon
- Moisturizer with Sun Protection: [Torriden DIVE-IN Mild Sunscreen](https://lovi.care/skincare/ca/p/torriden/dive-in-mild-sunscreen/for/sensitive-skin) — Superior fit — CA$27.34 at Amazon

## Where to buy

- Amazon.ca: CA$25.98 (https://www.amazon.ca/dp/B07VYVRXJ6?tag=lovi-care-web-product01-20&linkCode=osi&th=1&psc=1)
Prices checked 6 Nov 2026.

## Ingredients

Hippophae Rhamnoides Fruit Extract, Butylene Glycol, Pentylene Glycol, Glycerin, Betaine, Water, Niacinamide, Propanediol, Aloe Barbadensis Leaf Extract, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Pumpkin Fruit Extract, Physalis Alkekengi Fruit Extract, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Ocimum Sanctum Leaf Extract, Beta-Glucan, Curcuma Longa Root Extract, Corallina Officinalis Extract, Brassica Oleracea Italica Extract, Coccinia Indica Fruit Extract, Moringa Oleifera Seed Oil, Boswellia Serrata Extract Resin, Bioflavonoids, Panthenol, Allantoin, Sodium Polyacrylate, Tocopherol, Polysorbate 80, 1,2-Hexanediol, Ethyl Hexanediol, Ammonium Acryloyldimethyltaurate Vp Copolymer, 3-O-Ethyl Ascorbic Acid, Zanthoxylum Piperitum Fruit Extract, Pulsatilla Koreana Extract, Usnea Barbata 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/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- United Kingdom: https://lovi.care/skincare/uk/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Ireland: https://lovi.care/skincare/ie/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Germany: https://lovi.care/skincare/de/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- France: https://lovi.care/skincare/fr/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Italy: https://lovi.care/skincare/it/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Netherlands: https://lovi.care/skincare/nl/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Spain: https://lovi.care/skincare/es/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Canada: https://lovi.care/skincare/ca/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin (this page)
- Australia: https://lovi.care/skincare/au/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Singapore: https://lovi.care/skincare/sg/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/isntree/c-niacin-toning-ampoule/for/sensitive-skin