# K-SECRET SEOUL 1988 Serum for mature skin

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

Page: https://lovi.care/skincare/uk/p/k-secret/seoul-1988-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 the United Kingdom.

Brand: [K-SECRET](https://lovi.care/skincare/uk/brands/k-secret)
Category: [Serums and treatments](https://lovi.care/skincare/uk/best/serums)

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.

Works for mature skin; other serums fit it better.

## Why this fit

- Offers moderate benefits for your normal skin, as Panax Ginseng Root Extract and Niacinamide provide antioxidant activity and barrier repair, though specialized anti-aging action for wrinkles and fine lines is not the primary focus.
- The inclusion of Retinal and 3-O-Ethyl Ascorbic Acid offers visible anti-aging effects and evens skin tone, while Glycerin and Tocopherol provide supportive hydration and soothing benefits.
- The product is safe for your normal skin, with no risks of irritation due to the absence of harsh ingredients and the presence of soothing components.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/dry-skin): Average
- [Combination skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/combination-skin): Average
- [Sensitive skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/sensitive-skin): Average
- [Acne-prone skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/acne-prone-skin): Average
- [Skin with dark spots](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/dark-spots): Average
- [Mature skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/mature-skin): Average (this page)
- [Dry sensitive skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/dry-sensitive-skin): Average
- [Oily acne-prone skin](https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/oily-acne-prone-skin): Average

## Key ingredients

Retinal, Panax Ginseng Root Extract, Niacinamide, Bakuchiol, 3-O-Ethyl Ascorbic Acid

## What the research says

- A topical serum containing vitamin C, vitamin E, and raspberry leaf cell culture extract improved skin color, elasticity, radiance, smoothness, scaliness, and wrinkles compared to the untreated contralateral side in fifty female volunteers. ([Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31975502/))
- 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/))
- Treatment with a combination of niacinamide and hyaluronic acid improved skin aging signs and demonstrated a senomorphic effect by decreasing SASP and autocrine signaling genes in women. ([Scientific Reports, 2024](https://pubmed.ncbi.nlm.nih.gov/39009698/))
- 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/))
- Enzyme-modified ginseng extract cream significantly reduced the global photo-damage score and various roughness measures including total roughness, smoothness depth, and arithmetic roughness average compared to placebo in 23 human subjects. ([Rejuvenation Research, 2015](https://pubmed.ncbi.nlm.nih.gov/25867599/))
- A red ginseng hydrogel formulation with 1,2-hexanediol promoted selective growth of Staphylococcus epidermidis and decreased Cutibacterium acnes in 20 female subjects. ([Journal of Ginseng Research, 2022](https://pubmed.ncbi.nlm.nih.gov/35509819/))
- A 1% fermented black ginseng cream significantly reduced eye wrinkles and brightened skin color in twenty-three human subjects compared to control cream and baseline. ([Journal of Toxicology and Environmental Health. Part A, 2020](https://pubmed.ncbi.nlm.nih.gov/32564709/))
- 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 bakuchiol 0.5% applied twice daily compared with retinol 0.5% applied daily significantly decreased wrinkle surface area and hyperpigmentation with no statistical difference between the compounds in 44 patients over 12 weeks, while retinol users reported more facial skin scaling and stinging. ([The British Journal of Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/29947134/))
- A dermocosmetic containing bakuchiol, Ginkgo biloba extract, and mannitol improves inflammatory lesions, Investigator Global Assessment, and seborrhea intensity when added to adapalene 0.1% gel in patients with acne vulgaris. ([Clinical, Cosmetic and Investigational Dermatology, 2015](https://pubmed.ncbi.nlm.nih.gov/25914553/))
- Topical application of a serum containing supramolecular Bakuchiol and Terminalia chebula extract significantly improved barrier function, reduced redness and sensitivity, and improved wrinkles and elasticity in 34 Chinese subjects with sensitive skin after 28 days. ([Health Science Reports, 2025](https://pubmed.ncbi.nlm.nih.gov/41424674/))
- 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/))

## Why other serums fit mature skin better

- Caviar oil enhanced adipocyte differentiation in vitro, reduced MMP expression while increasing collagen and elastin formation ex vivo, and improved skin moisture, elasticity, and density in 102 participants over four weeks of Cavi Balm usage compared to baseline. ([In Vivo, 2023](https://pubmed.ncbi.nlm.nih.gov/37652485/))
- 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/))

## What reviewers say

Users consistently praise this serum as a gentle yet effective entry-level retinoid that improves skin texture and radiance without the harsh irritation often associated with retinol. The combination of 2% liposomal retinal and black ginseng is frequently highlighted for its ability to smooth fine lines and even out skin tone while maintaining hydration, making it a favorite for those with sensitive or acne-prone skin.

- Liked: Gentle, non-irritating (mostly mentioned)
- Liked: Improves skin texture (often mentioned)
- Liked: Lightweight absorption (often mentioned)
- Liked: Hydrating formula (sometimes noted)
- Disliked: Slow anti-aging results (sometimes noted)
- Disliked: Availability issues (rarely noted)
- Disliked: Bulky packaging (rarely noted)
- Disliked: Initial breakouts (rarely noted)

## How to apply

- Use this serum in your PM routine. Start by applying it 3 times a week, and work up to daily use if your skin likes it.
- Apply this serum after your toner and before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and let it absorb for a minute.
- You can apply the serum on dry skin for the best results against fine lines.
- Always do a patch test before your first use and avoid the sensitive eye area.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### How well does K-SECRET SEOUL 1988 Serum work for mature skin?

This serum works moderately well for mature skin, providing supportive hydration and antioxidant protection, though specialized action on wrinkles is not its main focus. To truly care for mature skin, a product needs high-quality ingredients that target fine lines and wrinkles excellently, along with potent antioxidants, hydrating components, and peptides to improve skin elasticity and moisture retention.
Sources: [Scientific Reports, 2024](https://pubmed.ncbi.nlm.nih.gov/39009698/)

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

Retinal, Bakuchiol, and 3-O-Ethyl Ascorbic Acid help smooth and firm mature skin, while Niacinamide and Panax Ginseng Root Extract provide helpful antioxidant support. To work even better for mature skin, a product of this type needs high concentrations of potent anti-aging ingredients that specifically target fine lines and wrinkles while offering excellent safety and suitability.
Sources: [Scientific Reports, 2024](https://pubmed.ncbi.nlm.nih.gov/39009698/)

### What does Retinal do for mature skin?

Retinal helps smooth fine lines, improve uneven skin tone, refine texture, and tighten pores on mature skin. It may also boost skin thickness and elasticity over time while keeping irritation low compared to stronger options.
Sources: [Journal of Drugs in Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/39496127/), [Journal of Cosmetic Dermatology, 2018](https://pubmed.ncbi.nlm.nih.gov/30027612/)

### What does Ginseng Root Extract do for mature skin?

Ginseng root extract helps mature skin look smoother and less lined by supporting collagen production and moisture retention. It also may help protect the skin from daily damage and reduce roughness over time.
Sources: [Journal of Ginseng Research, 2017](https://pubmed.ncbi.nlm.nih.gov/28123324/), [Rejuvenation Research, 2015](https://pubmed.ncbi.nlm.nih.gov/25867599/)

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

This serum goes in the evening routine after cleansing and toning, and before moisturizing. Mature skin needs products with powerful anti-aging actives like retinoids, peptides, and antioxidants, along with deep hydrators, to effectively smooth lines and firm the skin.
Sources: [Journal of Drugs in Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/36607762/), [Journal of Drugs in Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40327583/)

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

It is best to use this treatment separately from AHAs, applying your AHA on different nights or in your morning routine to avoid overloading your skin. This product works for mature skin, though mature skin often does better with dedicated anti-aging ingredients and deep hydrators to smooth fine lines and plump dry areas.

### How often should I use this serum?

This serum fits into your evening routine as a treatment step. Mature skin needs targeted anti-aging ingredients like retinol, peptides, and potent antioxidants to smooth wrinkles and firm texture.
Sources: [Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38406974/), [Facial Plastic Surgery, 2014](https://pubmed.ncbi.nlm.nih.gov/24488631/)

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

This serum is unlikely to clog pores or cause major breakouts for mature skin, though initial breakouts may happen very rarely. Reviewers rarely mention breakouts, and the formula is generally safe with no harsh ingredients.

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

Yes, it has no fragrance and no drying alcohol.

## Alternatives for mature skin

- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/uk/p/skinceuticals/c-e-ferulic/for/mature-skin) — Superior fit — £143.35 at Amazon
- [NEOGEN DERMALOGY REAL VITA C SERUM](https://lovi.care/skincare/uk/p/neogen-dermalogy/real-vita-c-serum/for/mature-skin) — High fit — £25.95 at Amazon
- [La Mer The Regenerating Serum](https://lovi.care/skincare/uk/p/la-mer/the-regenerating-serum/for/mature-skin) — High fit — £372.06 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/uk/p/fresh/soy-face-cleanser/for/mature-skin) — Superior fit — £14.99 at Amazon
- Hydrating Toner: [SOME BY MI Snail Truecica Miracle Repair Toner](https://lovi.care/skincare/uk/p/some-by-mi/snail-truecica-miracle-repair-toner/for/mature-skin) — Superior fit — £13.98 at Amazon
- Moisturizer: [Elizabeth Arden Ceramide Lift and Firm Night Cream](https://lovi.care/skincare/uk/p/elizabeth-arden/advanced-ceramide-lift-and-firm-night-cream/for/mature-skin) — Superior fit — £38.50 at Amazon

## Where to buy

- Amazon.co.uk: £16.00 (https://www.amazon.co.uk/dp/B0CP3C7TTJ?tag=lovi-care-web-product-21&linkCode=osi&th=1&psc=1)
Prices checked 6 Nov 2026.

## Ingredients

Panax Ginseng Root Extract, Water, Glycerin, Dipropylene Glycol, Caprylic Capric Triglyceride, 1,2-Hexanediol, Niacinamide, Butylene Glycol, Methyl Gluceth-20, Polyglycerin-3 Methylglucose Distearate, Hydrogenated Lecithin, Sorbitan Stearate, Ammonium Acryloyldimethyltaurate Vp Copolymer, Macadamia Ternifolia Seed Oil, Carbomer, Tromethamine, Betaine, Tocopherol, Ethylhexylglycerin, Helianthus Annuus Seed Oil Sunflower Seed Oil, Adenosine, Disodium Edta, Cholesterol, Polyglyceryl-10 Oleate, Brassica Campestris Sterols, Phytosteryl Behenyl Octyldodecyl Lauroyl Glutamate, Retinal, Silica, Aluminum Magnesium Hydroxide Stearate, Potassium Cetyl Phosphate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Arctium Lappa Root Extract, Cnidium Officinale Root Extract, Dioscorea Japonica Root Extract, Paeonia Suffruticosa Root Extract, Rehmannia Chinensis Root Extract, 3-O-Ethyl Ascorbic Acid, Bakuchiol, Sh-Oligopeptide-1, Sh-Oligopeptide-2, Sh-Polypeptide-1
## 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/k-secret/seoul-1988-serum/for/mature-skin
- United Kingdom: https://lovi.care/skincare/uk/p/k-secret/seoul-1988-serum/for/mature-skin (this page)
- Ireland: https://lovi.care/skincare/ie/p/k-secret/seoul-1988-serum/for/mature-skin
- Germany: https://lovi.care/skincare/de/p/k-secret/seoul-1988-serum/for/mature-skin
- France: https://lovi.care/skincare/fr/p/k-secret/seoul-1988-serum/for/mature-skin
- Italy: https://lovi.care/skincare/it/p/k-secret/seoul-1988-serum/for/mature-skin
- Netherlands: https://lovi.care/skincare/nl/p/k-secret/seoul-1988-serum/for/mature-skin
- Spain: https://lovi.care/skincare/es/p/k-secret/seoul-1988-serum/for/mature-skin
- Canada: https://lovi.care/skincare/ca/p/k-secret/seoul-1988-serum/for/mature-skin
- Australia: https://lovi.care/skincare/au/p/k-secret/seoul-1988-serum/for/mature-skin
- Singapore: https://lovi.care/skincare/sg/p/k-secret/seoul-1988-serum/for/mature-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/k-secret/seoul-1988-serum/for/mature-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/k-secret/seoul-1988-serum/for/mature-skin