# The INKEY List Collagen Peptide Serum for mature skin

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

Page: https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-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 Australia.

Brand: [The INKEY List](https://lovi.care/skincare/au/brands/the-inkey-list)
Category: [Moisturizers and moisturizing serums](https://lovi.care/skincare/au/best/moisturizers)

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.

One of the best moisturizers for mature skin.

## Why this fit

- Offers excellent plumping and firming for your normal skin due to the presence of acetyl hexapeptide-8 and palmitoyl tripeptide-1, which improve volume and elasticity.
- The serum also provides moderate benefits for wrinkles and fine lines by supporting collagen production with additional peptides like palmitoyl tetrapeptide-7.
- The safety profile is excellent, with no risks of irritation for your normal skin due to the absence of prohibited or harsh ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/dry-skin): High
- [Combination skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/combination-skin): Average
- [Sensitive skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/sensitive-skin): High
- [Acne-prone skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/dark-spots): Average
- [Mature skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/mature-skin): High (this page)
- [Dry sensitive skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/oily-acne-prone-skin): High

## Key ingredients

Collagen Peptides, Acetyl Hexapeptide-8, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Glycerin

## What the research says

- Argireline treatment twice daily for 4 weeks produced a significant anti-wrinkle effect with 48.9% total efficacy and decreased skin roughness in Chinese subjects compared with 0% efficacy and no decrease in roughness in the placebo group. ([American Journal of Clinical Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/23417317/))
- Argireline applied twice daily for 4 weeks achieved a total anti-wrinkle efficiency of 48.9% and notably reduced wrinkle depth compared to placebo in Chinese subjects. ([Journal of Cosmetic and Laser Therapy, 2013](https://pubmed.ncbi.nlm.nih.gov/23607739/))
- 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 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/))
- Palmitoyl tetrapeptide-7, acetyl hexapeptide-8, palmitoyl tripeptide-1, and palmitoyl tetrapeptide-10 significantly increased type III collagen levels in human dermal fibroblasts following UV exposure, with their combination demonstrating a greater effect in vitro and enhancing type I, III, and IV collagen levels in ex vivo skin tissues compared to individual components. ([International Journal of Cosmetic Science, 2026](https://pubmed.ncbi.nlm.nih.gov/42683869/))
- A liquid formulation containing hydrolyzed collagen demonstrated structural stability, peptide mass distribution between 0.5 and 19.5 kDa, and faded forehead wrinkles in five volunteers while proving to be non-irritating and hypoallergenic. ([Journal of Cosmetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/32390321/))
- Exposure to collagen peptides increased the expression of COL1A1, ELN, and VCAN genes and collagen protein levels in cultured human dermal fibroblasts compared to untreated controls. ([Frontiers in Medicine, 2024](https://pubmed.ncbi.nlm.nih.gov/38751975/))
- Salmo salar and Tilapia nilotica skin collagen peptides accelerate wound healing in a rat murine wound model by reducing proinflammatory cytokines, upregulating BD14, NOD2, IL-10, VEGF, and beta-FGF, and favorably altering wound microflora colonization compared to untreated controls. ([Journal of Agricultural and Food Chemistry, 2020](https://pubmed.ncbi.nlm.nih.gov/31967468/))
- Treatment with cross-linked hyaluronic acid-based microneedle patches combined with acetyl hexapeptide-8 or epidermal growth factor significantly improved wrinkles and skin hydration compared to the patch alone in Korean females over 29 days. ([Annals of Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/33911590/))
- Acetyl hexapeptide-3 and tripeptide-10 citrulline demonstrated antiwrinkle efficacy and decreased transepidermal water loss in twenty-four healthy volunteers compared to control groups, though synergistic effects between the two peptides remained unclear. ([Journal of Cosmetic Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28150423/))
- Daily topical acetyl hexapeptide-8 showed a trend toward a longer time until return to baseline Jankovic Blepharospasm Rating Scale scores compared to placebo (3.7 months vs. 3.0 months) in 24 patients with blepharospasm receiving botulinum toxin therapy. ([European Journal of Neurology, 2013](https://pubmed.ncbi.nlm.nih.gov/23146065/))
- A single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women. ([Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/))
- The emollient V0034CR significantly reduced TEWL compared to vehicle and vehicle plus glycerol, and significantly increased corneometry scores compared to vehicle and vehicle plus petrolatum in healthy volunteers with dry skin, demonstrating combined barrier function improvement from petrolatum and hydration improvement from glycerol. ([Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31532576/))
- Ten days of treatment with a cream containing 20% glycerin significantly increased skin hydration measured by corneometer values in 17 healthy volunteers compared to a placebo cream, but showed no influence on transepidermal water loss or skin sensitivity to an irritating surfactant. ([International Journal of Cosmetic Science, 2001](https://pubmed.ncbi.nlm.nih.gov/18498456/))

## What reviewers say

Based on a very large amount of data, this serum is consistently praised for its ability to instantly plump and hydrate the skin, making it appear fresher and smoother. While many appreciate it as an affordable preventative measure for aging, a significant number of reviewers noted that it did not dramatically reduce deep wrinkles or fine lines on its own.

- Liked: Plumps and firms (mostly mentioned)
- Liked: Hydrating (often mentioned)
- Liked: Lightweight & fast-absorbing (often mentioned)
- Liked: Affordable & fragrance-free (sometimes noted)
- Disliked: Lack of dramatic results (sometimes noted)
- Disliked: Messy packaging (sometimes noted)
- Disliked: Runny texture (sometimes noted)
- Disliked: Sticky finish (rarely noted)

## How to apply

- Use your moisturizer twice a day in your AM and PM routines. Apply it daily to help smooth fine lines.
- Apply this product after your toner and serum, but before your SPF in the morning. Follow your cleanser and toner steps to keep your skin balanced.
- Gently press a small amount into your face and neck. Avoid rubbing the skin too harshly to prevent extra tension.
- Apply the moisturizer on slightly damp skin to help lock in extra moisture. Clean skin helps the product absorb much more evenly.
- Avoid the sensitive eye area during application. Do a quick patch test before your very first use to stay safe.
- Video: https://storage.pora.ai/2f72f5d69f07beeafc30237f829efbff.mp4

## Questions and answers

### What makes The Inkey List Collagen Peptide Serum a great fit for mature skin?

This serum is a great fit because it helps firm and plump mature skin while smoothing out fine lines and wrinkles. It achieves this using peptides like acetyl hexapeptide-8 and palmitoyl tripeptide-1 to boost elasticity and support collagen production. It is also very gentle and unlikely to cause irritation.
Sources: [American Journal of Clinical Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/23417317/), [Journal of Cosmetic Dermatology, 2026](https://pubmed.ncbi.nlm.nih.gov/41527525/)

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

Acetyl hexapeptide-8 and palmitoyl tripeptide-1 make this serum a great fit because they help plump the skin, improve volume, and boost elasticity. Additionally, palmitoyl tetrapeptide-7 supports collagen production to help smooth out fine lines and wrinkles.
Sources: [American Journal of Clinical Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/23417317/), [Journal of Cosmetic and Laser Therapy, 2013](https://pubmed.ncbi.nlm.nih.gov/23607739/)

### What do Collagen Peptides do for mature skin?

Collagen peptides help improve skin elasticity, hydration, and the appearance of wrinkles in mature skin with daily use over several weeks. Clinical studies show that this ingredient supports skin firmness by helping boost moisture and structural proteins.
Sources: [Journal of Cosmetic Dermatology, 2015](https://pubmed.ncbi.nlm.nih.gov/26362110/), [Nutrients, 2023](https://pubmed.ncbi.nlm.nih.gov/37432180/)

### What does Argireline do for mature skin?

Argireline helps smooth out lines and makes mature skin look firmer and less rough when used twice a day. It may also help keep skin hydrated, though its penetration is naturally limited.
Sources: [American Journal of Clinical Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/23417317/), [Journal of Cosmetic and Laser Therapy, 2013](https://pubmed.ncbi.nlm.nih.gov/23607739/)

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

This serum goes in the evening routine after cleansing and before moisturizing. Putting treatments in the evening helps keep things simple and provides extra safety around sun exposure.

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

Yes, you can use this serum with retinol by applying the serum first to help firm and smooth, followed by your retinol. This safe combination helps keep your mature skin soft while working on fine lines without irritation.
Sources: [American Journal of Clinical Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/23417317/), [Journal of Cosmetic and Laser Therapy, 2013](https://pubmed.ncbi.nlm.nih.gov/23607739/)

### How often should I use this serum?

This serum is used in the evening as part of your routine. Using it daily helps improve firmness and volume while smoothing fine lines on mature skin.
Sources: [Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/32141711/), [American Journal of Clinical Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/23417317/)

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

This serum is unlikely to clog pores, cause breakouts, or lead to purging on mature skin because it contains no heavy oils, waxes, or harsh ingredients known to block pores. Its lightweight texture helps keep skin smooth and soft without triggering irritation.

### Can I use this serum around the eyes or on my body?

You can use this serum on the thin skin around your eyes and on your body to help firm and smooth those areas. The gentle formula has a very safe profile, so it is unlikely to cause irritation on delicate skin.

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

Yes, it has no fragrance and no drying alcohol.

## Alternatives for mature skin

- [Revision Skincare Hydrating Serum](https://lovi.care/skincare/au/p/revision-skincare/hydrating-serum/for/mature-skin) — High fit — A$97.29 at Amazon
- [Elizavecca Witch Piggy Hell Pore Control Hyaluronic Acid 97%](https://lovi.care/skincare/au/p/elizavecca/witch-piggy-hell-pore-control-hyaluronic-acid-97/for/mature-skin) — High fit — A$25.90 at Amazon
- [Isntree Green Tea Fresh Serum](https://lovi.care/skincare/au/p/isntree/green-tea-fresh-serum/for/mature-skin) — High fit — A$34.00 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/au/p/fresh/soy-face-cleanser/for/mature-skin) — Superior fit — A$73.61 at Amazon
- Hydrating Toner: [COSRX Propolis Synergy Toner](https://lovi.care/skincare/au/p/cosrx/full-fit-propolis-synergy-toner/for/mature-skin) — Superior fit — A$37.00 at Amazon
- Pre-Cleanser: [Pyunkang Yul Deep Cleansing Oil](https://lovi.care/skincare/au/p/pyunkang-yul/deep-cleansing-oil/for/mature-skin) — Superior fit — A$30.99 at Amazon

## Where to buy

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

## Ingredients

Water, Glycerin, Butylene Glycol, Pentylene Glycol, Acetyl Hexapeptide-8, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Carbomer, Xanthan Gum, Phenoxyethanol, Ethylhexylglycerin, Disodium Edta, Sodium Hydroxide
## 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/the-inkey-list/collagen-peptide-serum/for/mature-skin
- United Kingdom: https://lovi.care/skincare/uk/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Ireland: https://lovi.care/skincare/ie/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Germany: https://lovi.care/skincare/de/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- France: https://lovi.care/skincare/fr/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Italy: https://lovi.care/skincare/it/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Netherlands: https://lovi.care/skincare/nl/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Spain: https://lovi.care/skincare/es/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Canada: https://lovi.care/skincare/ca/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Australia: https://lovi.care/skincare/au/p/the-inkey-list/collagen-peptide-serum/for/mature-skin (this page)
- Singapore: https://lovi.care/skincare/sg/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/the-inkey-list/collagen-peptide-serum/for/mature-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/the-inkey-list/collagen-peptide-serum/for/mature-skin