# Isntree TW-Real Bifida Ampoule for dry skin

**Lovi Fit: Superior fit for dry skin.**
Dry Skin Fit: Superior · Effectiveness: Superior · Safety: Excellent.

Page: https://lovi.care/skincare/p/isntree/tw-real-bifida-ampoule/for/dry-skin

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

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

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

One of the best serums for dry skin.

## Why this fit

- Excellent suitability for your dry skin is provided by Bifida Lysate Ferment and Sodium Hyaluronate, which deeply hydrate and support your skin barrier, while peptides like Palmitoyl Oligopeptide minimize fine lines and wrinkles.
- Glycerin and Hydrolyzed Collagen further boost ECM synthesis and humectant action, enhancing overall skin resilience and smoothness.
- The safety profile is excellent, with no risks of irritation due to the absence of harsh ingredients and the presence of soothing components like Beta-Glucan.

## Fit by skin type

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

## Key ingredients

Bifida Lysate Ferment, Niacinamide, Sodium Hyaluronate, Hydrolyzed Collagen, Copper Tripeptide-1

## What the research says

- 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/))
- Topical hyaluronic acid filler serum combined with Botulinum toxin type A lengthened the duration of the toxin's effect in reducing wrinkles compared to Botulinum toxin type A alone. ([Dermatologic Therapy, 2022](https://pubmed.ncbi.nlm.nih.gov/36200921/))
- A multi-modal methodology combining MALDI-MSI, in vivo RCM, echography, and histology revealed age-related decreases in extracellular matrix and epidermal-dermal junction proteins and undulation depth, while a blend of palmitoyl oligopeptide and palmitoyl tetrapeptide-7 improved subepidermal low-echogenic band thickness, density, and extracellular matrix structure compared to placebo. ([Journal of Cosmetic Dermatology, 2015](https://pubmed.ncbi.nlm.nih.gov/25817264/))
- Topical application of Bifida Ferment Lysate strengthens the skin barrier function by upregulating barrier and antimicrobial peptide genes, exhibiting strong antioxidant properties, and decreasing inflammatory cytokine secretion in vitro. ([Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/37218728/))
- 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 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 application of TAC/Collagen postbiotics gel improved skin moisture score and inflammation index, and reduced porphyrins and brown spots in 20 volunteers with acne vulgaris. ([Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/35818134/))
- Topical collagen tripeptide application improved skin wrinkles, elasticity, and density while reducing advanced glycated end products in 22 Asian women over 4 weeks. ([International Journal of Molecular Sciences, 2022](https://pubmed.ncbi.nlm.nih.gov/35163025/))
- Marine collagen extracted from Greenland halibut skin showed a non-cytotoxic effect on fibroblast cells and provided a slight skin hydration effect when incorporated into cosmetic hydrogel formulations at dosages of 0.1, 0.25, and 0.5% in 23 healthy volunteers. ([Marine Drugs, 2023](https://pubmed.ncbi.nlm.nih.gov/36827098/))
- Topical copper tripeptide complex on CO2 laser-resurfaced skin caused no significant reduction in erythema or objective improvement in wrinkles compared to controls, but significantly increased patient satisfaction regarding overall skin quality. ([Archives of Facial Plastic Surgery, 2006](https://pubmed.ncbi.nlm.nih.gov/16847171/))
- A novel regimen combining a hydroxy acid-based scrub and copper tripeptide serum significantly reduced adherent scalp flaking by 61.24%, increased hair density by 12.48%, increased hair thickness by 25.36%, and improved scalp skin hydration by 76.24% in adults with mild to moderate dandruff over 15 days. ([Cureus, 2024](https://pubmed.ncbi.nlm.nih.gov/39449909/))
- The combination of Thermus thermophilus and Bacillus subtilis mixed-culture ferment extract and copper tripeptide-1 GHK-Cu reduced inflammatory cytokines, protected skin explants from UV-induced damage, and improved wrinkles and skin barrier conditions compared to individual components or controls. ([Skin Research and Technology, 2026](https://pubmed.ncbi.nlm.nih.gov/42573538/))

## What reviewers say

Based on a very large amount of data, users consistently praise this ampoule for its ability to strengthen the skin barrier and provide deep hydration without heaviness, resulting in a "glass skin" glow and smoother texture. It is highly effective for sensitive and dry skin types seeking anti-aging benefits. A small minority of users with acne-prone or very oily skin experienced minor breakouts or found the finish slightly tacky.

- Liked: Lightweight & fast absorbing (mostly mentioned)
- Liked: Hydrating & plumping (often mentioned)
- Liked: Strengthens skin barrier (often mentioned)
- Liked: Gentle & non-irritating (sometimes noted)
- Disliked: No visible results (sometimes noted)
- Disliked: Caused breakouts/irritation (rarely noted)
- Disliked: Texture/finish issues (rarely noted)

## How to apply

- Apply this serum PM, starting 3×/week and working up to daily use as your skin adjusts.
- Place the serum after cleansing and toner, but right before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and let it absorb for a minute.
- Apply the serum on slightly damp skin to help lock in extra moisture.
- Avoid the eye area and do a patch test before your first use.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### What makes Isntree TW-Real Bifida Ampoule one of the best fits for dry skin?

This product is one of the best fits because Bifida Lysate Ferment and Sodium Hyaluronate deeply hydrate and support your skin barrier, while peptides help smooth out fine lines. Glycerin and Hydrolyzed Collagen further boost moisture and make your skin more resilient and smooth. It is also very safe and gentle, using soothing components like Beta-Glucan so it is unlikely to irritate dry skin.
Sources: [Dermatologic Therapy, 2022](https://pubmed.ncbi.nlm.nih.gov/36200921/), [Journal of Cosmetic Dermatology, 2015](https://pubmed.ncbi.nlm.nih.gov/25817264/)

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

Bifida Lysate Ferment and Sodium Hyaluronate make this serum a great fit because they deeply hydrate and support your skin barrier. Glycerin and Hydrolyzed Collagen further boost moisture and smoothness, while peptides like Palmitoyl Oligopeptide help minimize fine lines and wrinkles.
Sources: [Dermatologic Therapy, 2022](https://pubmed.ncbi.nlm.nih.gov/36200921/), [Journal of Cosmetic Dermatology, 2015](https://pubmed.ncbi.nlm.nih.gov/25817264/)

### What does Bifida Ferment Lysate do for dry skin?

Bifida Ferment Lysate helps dry skin by strengthening the skin barrier and keeping it well hydrated. It also helps calm irritation and protects against everyday stress.
Sources: [Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/37218728/), [Scientific Reports, 2023](https://pubmed.ncbi.nlm.nih.gov/37803101/)

### What does Niacinamide do for dry skin?

Niacinamide helps dry skin by strengthening the skin barrier, increasing hydration, and reducing water loss. It supports ceramide production and helps keep the surface smooth and calm. This ingredient tends to be very well tolerated and is unlikely to irritate dry skin.
Sources: [Journal of Cosmetic Dermatology, 2004](https://pubmed.ncbi.nlm.nih.gov/17147561/), [Journal of Cosmetic Dermatology, 2026](https://pubmed.ncbi.nlm.nih.gov/42108609/)

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

This treatment goes in the evening routine after cleansing and before your moisturizer. Putting it at night keeps things simple and avoids extra safety concerns around sun exposure.

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

You can use this treatment alongside retinol by applying the retinol first, letting it absorb, and then following with this ampoule to keep your dry skin calm and hydrated. This layering approach is unlikely to cause irritation because the formula contains soothing ingredients like beta-glucan.

### How often should I use this serum?

You can use this serum in your evening routine, applying it after cleansing and before your moisturizer. It is very gentle on dry skin, so you may use it daily as part of your regular routine.
Sources: [Clinical, Cosmetic and Investigational Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/36798538/), [Journal of Cosmetic Dermatology, 2026](https://pubmed.ncbi.nlm.nih.gov/41527525/)

### Can it clog pores, cause breakouts or purging for dry skin?

This product is unlikely to cause breakouts or irritation on dry skin because it has an excellent safety profile and is free of harsh ingredients. Some reviewers do mention occasional breakouts, but soothing components like Beta-Glucan help keep the skin calm.

### Is it fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for dry skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/dry-skin) — Superior fit — $16.75 at Amazon
- [Paula's Choice RESIST Super Antioxidant Concentrate Serum](https://lovi.care/skincare/p/paula-s-choice/resist-super-antioxidant-concentrate-serum/for/dry-skin) — Superior fit — $53.00 at Amazon
- [ma:nyo Bifida Biome Complex Ampoule](https://lovi.care/skincare/p/ma-nyo/bifida-biome-complex-ampoule/for/dry-skin) — Superior fit — $19.90 at Amazon

## Pairs well with

- Cleanser: [La Roche-Posay Hydrating Gentle Cleanser](https://lovi.care/skincare/p/la-roche-posay/toleriane-hydrating-gentle-cleanser/for/dry-skin) — Superior fit — $19.99 at Amazon
- Hydrating Toner: [Pyunkang Yul Calming Deep Moisture Toner](https://lovi.care/skincare/p/pyunkang-yul/calming-deep-moisture-toner/for/dry-skin) — Superior fit — $16.99 at Amazon
- Moisturizer: [SKIN1004 Madagascar Centella Probio-Cica Enrich Cream](https://lovi.care/skincare/p/skin1004/madagascar-centella-probio-cica-enrich-cream/for/dry-skin) — Superior fit — $22.00 at Amazon

## Where to buy

- Amazon.com: $18.90 (https://www.amazon.com/dp/B082TWZNYB?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
Prices checked 5 Nov 2026.

## Ingredients

Bifida Lysate Ferment, Dipropylene Glycol, Niacinamide, Glycerin, Lactobacillus Pumpkin Extract Ferment, Lactobacillus Soybean Extract Ferment, Rice Ferment Filtrate Sake Ferment Filtrate, Sodium Hyaluronate, Hydrolyzed Collagen, Willow Bark Extract, Origanum Vulgare Leaf Extract, Cinnamomum Cassia Bark Extract, Portulaca Oleracea Extract, Chamaecyparis Obtusa Leaf Extract, Beta-Glucan, Palmitoyl Oligopeptide, Copper Tripeptide-1, Acetyl Hexapeptide-8, Allantoin, Hydroxyethylcellulose, Panthenol, Carbomer, Arginine, Butylene Glycol, Scutellaria Baicalensis Root Extract, Illicium Verum Fruit Extract Anise Fruit Extract, Adenosine, 1,2-Hexanediol, Disodium Edta
## 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/tw-real-bifida-ampoule/for/dry-skin (this page)
- United Kingdom: https://lovi.care/skincare/uk/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Ireland: https://lovi.care/skincare/ie/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Germany: https://lovi.care/skincare/de/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- France: https://lovi.care/skincare/fr/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Italy: https://lovi.care/skincare/it/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Netherlands: https://lovi.care/skincare/nl/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Spain: https://lovi.care/skincare/es/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Canada: https://lovi.care/skincare/ca/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Australia: https://lovi.care/skincare/au/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Singapore: https://lovi.care/skincare/sg/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/isntree/tw-real-bifida-ampoule/for/dry-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/isntree/tw-real-bifida-ampoule/for/dry-skin