# Dear, Klairs Midnight Blue Youth Activating Drop for skin with dark spots

**Lovi Fit: High fit for skin with dark spots.**
Normal Skin Fit: High · Effectiveness: High · Safety: Excellent.

Page: https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots

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

Brand: [Dear, Klairs](https://lovi.care/skincare/fr/brands/dear-klairs)
Category: [Serums and treatments](https://lovi.care/skincare/fr/best/serums)

This fit is calculated for the concerns frequently associated with dark spots: hyperpigmentation, sun spots, and uneven skin tone. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

A great choice for skin with dark spots; a few serums fit it even better.

## Why this fit

- Offers high suitability for your normal skin as sh-oligopeptide-1 and sh-polypeptide-1 boost ECM synthesis and collagen stimulation, addressing your pigmentation concerns by supporting skin regeneration and repair.
- The presence of adenosine further enhances skin rejuvenation by minimizing fine lines and wrinkles, contributing to overall skin health.
- The safety profile is excellent for your normal skin, with no risks of irritation due to the absence of harsh ingredients and the inclusion of soothing Guaiazulene.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/dry-skin): High
- [Combination skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/sensitive-skin): Average
- [Acne-prone skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots): High (this page)
- [Mature skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/oily-acne-prone-skin): High

## Key ingredients

Rh-Oligopeptide-1, Sh-Oligopeptide-1, Sh-Polypeptide-1, Blueberry Fruit Extract, Guaiazulene

## What the research says

- Bovine basic fibroblast growth factor combined with ultrapulsed fractional CO2 laser increased the overall response rate, reduced ECCA scores, scar base depth, skin pore value, texture value, transepidermal water loss, redness duration, scabbing duration, erythema duration, and adverse reactions, while increasing skin water and epidermal oil content in patients with acne scars compared to ultrapulsed fractional CO2 laser therapy alone. ([Clinical, Cosmetic and Investigational Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/37841061/))
- Adenosine-loaded dissolving microneedle patches showed similar or better efficacy on skin wrinkles, dermal density, elasticity, and hydration compared to adenosine cream in 22 female subjects. ([International Journal of Cosmetic Science, 2018](https://pubmed.ncbi.nlm.nih.gov/29574973/))
- Horse oil-spread and adenosine-loaded dissolving microneedle patches significantly improved skin elasticity, hydration, dermal density, and wrinkles compared with adenosine-loaded dissolving microneedle patches in 20 women without causing adverse events. ([Journal of Cosmetic Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/30160014/))
- Topical application of a disodium adenosine monophosphate-based formulation reduced wrinkles and hyperpigmentation while improving hydration, barrier function, skin lifting, and epidermal turnover in female participants. ([International Journal of Molecular Sciences, 2026](https://pubmed.ncbi.nlm.nih.gov/42278371/))
- Topical epidermal growth factor combined with silver sulfadiazine accelerated the rate of epidermal regeneration and significantly decreased healing time by approximately 1 to 1.5 days across all stages of healing in skin-graft-donor sites of 12 patients compared to silver sulfadiazine alone. ([The New England Journal of Medicine, 1989](https://pubmed.ncbi.nlm.nih.gov/2659995/))
- Topical recombinant human epidermal growth factor combined with ablative fractional carbon dioxide laser significantly improved striae surface texture and showed significantly greater participant satisfaction regarding marked improvement compared to ablative fractional carbon dioxide laser combined with Aloe vera gel in patients with striae alba. ([Lasers in Surgery and Medicine, 2020](https://pubmed.ncbi.nlm.nih.gov/30614013/))
- Topical EGF combined with fractional CO2 laser significantly improves the clinical appearance of atrophic acne scars and decreases skin pigmentation compared to fractional CO2 laser alone in patients with atrophic acne scars. ([The Journal of Clinical and Aesthetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/35942017/))
- Topical application of PTD-EGF and FGF1 increased cell proliferation and collagen accumulation while protecting against UV-induced damage and improving wrinkle parameters in human skin. ([Journal of Cosmetic Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/24305427/))
- Basic fibroblast growth factor-loaded human serum albumin nanoparticles enhanced the proliferation and migration of human dermal fibroblasts, down-regulated myofibroblast-related genes, and accelerated wound healing with enhanced angiogenesis in vivo compared to unstable native forms. ([Journal of Nanobiotechnology, 2023](https://pubmed.ncbi.nlm.nih.gov/37658367/))
- Topical application of basic fibroblast growth factor decreases elevated transepidermal water loss and increases Ki67 expression in keratinocytes following mechanical scratching in a mouse model. ([Skin Pharmacology and Physiology, 2013](https://pubmed.ncbi.nlm.nih.gov/23108135/))
- Applying a topical product containing blueberry extract and Pro-xylane following micro-focused ultrasound significantly improved global aesthetic improvement, skin elasticity, and fine lines compared to standard moisturizer in 50 patients. ([Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40635529/))
- Topical usage of blueberries may prevent skin damage from environmental stressors by inducing an active skin response against noxious effects. ([Antioxidants, 2023](https://pubmed.ncbi.nlm.nih.gov/37371992/))
- Pretreatment with blueberry extracts prevented ozone-induced ROS production, NLRP1-ASC scaffold formation, and CASP1 and IL-18 transcripts across 2D, 3D, and human skin explant models. ([Oxidative Medicine and Cellular Longevity, 2020](https://pubmed.ncbi.nlm.nih.gov/32855770/))

## What reviewers say

Based on a very large amount of data, this product is widely praised as a lightweight, watery anti-aging serum that absorbs instantly and is exceptionally gentle, making it a favorite for oily and sensitive skin types. Many users report smoother skin texture, reduced redness, and a plump feel. Some find the 20ml bottle too small for the price and note that its preventative anti-aging effects take time to become visible.

- Liked: Rapid absorption (mostly mentioned)
- Disliked: Small volume/price (mostly mentioned)
- Liked: Gentle formula (often mentioned)
- Liked: Soothing & calming (often mentioned)
- Liked: Improves texture (sometimes noted)
- Disliked: Slow visible results (sometimes noted)
- Disliked: Watery consistency (sometimes noted)
- Disliked: Not moisturizing (rarely noted)

## How to apply

- Apply this serum as part of your PM routine starting 3x/week and build up to daily use if your skin likes it.
- Place the serum after cleansing and toning, but before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and wait a minute for it to absorb.
- Apply the serum on dry skin to help fade pigmentation effectively.
- Avoid the eye area and always use SPF 30+ during the day.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### What makes Klairs Midnight Blue Youth Activating Drop a great fit for skin with dark spots?

This treatment is a great fit for skin with dark spots because its peptides help support skin regeneration and repair to address pigmentation concerns, while soothing ingredients keep the safety profile excellent without irritation.

### Which ingredients make this treatment a good fit for skin with dark spots?

Sh-oligopeptide-1 and sh-polypeptide-1 make this treatment a great fit by boosting collagen and supporting skin repair to address dark spots. Adenosine also helps improve overall skin health.
Sources: [International Journal of Molecular Sciences, 2026](https://pubmed.ncbi.nlm.nih.gov/42278371/)

### What does EGF do for skin with dark spots?

Epidermal growth factor may help fade dark spots on some skin types, but results vary depending on the treatment and individual skin response. While some studies show it can help reduce dark spots and prevent discoloration after procedures, other research finds no significant difference compared to standard care.
Sources: [Dermatologic Surgery, 2015](https://pubmed.ncbi.nlm.nih.gov/25551327/), [Journal of Cosmetic Science, 2020](https://pubmed.ncbi.nlm.nih.gov/33022197/)

### Where does this treatment go in a skincare routine for skin with dark spots?

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

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

You can use this treatment with retinol, applying retinol first and following with this treatment once it absorbs. This product is unlikely to cause irritation due to the absence of harsh ingredients and the inclusion of soothing Guaiazulene.

### How often should I use this treatment?

This treatment is a great fit for your skin with dark spots and is used in the evening for simplicity and extra safety around sun exposure. Its peptides and adenosine support skin regeneration to help fade dark spots while keeping your skin calm.

### Can this treatment clog pores, cause breakouts or purging for skin with dark spots?

This treatment is unlikely to clog pores, cause breakouts, or lead to purging on skin with dark spots. It has an excellent safety profile for normal skin, with no harsh ingredients and soothing Guaiazulene to keep irritation away.

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

Yes, it has no fragrance and no drying alcohol.

## Alternatives for skin with dark spots

- [Paula's Choice RESIST Super Antioxidant Concentrate Serum](https://lovi.care/skincare/fr/p/paula-s-choice/resist-super-antioxidant-concentrate-serum/for/dark-spots) — Superior fit — €57.00 at Amazon
- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/fr/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/dark-spots) — High fit — €18.25 at Amazon
- [La Mer The Regenerating Serum](https://lovi.care/skincare/fr/p/la-mer/the-regenerating-serum/for/dark-spots) — High fit — €25.57 at Amazon

## Pairs well with

- Cleanser: [CeraVe Foaming Facial Cleanser](https://lovi.care/skincare/fr/p/cerave/foaming-facial-cleanser/for/dark-spots) — Superior fit — €11.35 at Amazon
- Hydrating Toner: [La Mer The Tonic](https://lovi.care/skincare/fr/p/la-mer/the-tonic/for/dark-spots) — Superior fit — €10.25 at Amazon
- Moisturizer: [Isntree Green Tea Fresh Serum](https://lovi.care/skincare/fr/p/isntree/green-tea-fresh-serum/for/dark-spots) — Superior fit — €12.56 at Amazon

## Where to buy

- Amazon.fr: €30.29 (https://www.amazon.fr/dp/B071GQP892?tag=lovi-care-web-product06-21&linkCode=osi&th=1&psc=1)
- Notino: €25.50 (https://www.notino.fr/klairs/midnight-blue-serum-activateur-pour-rajeunir-la-peau/p-16397531/)
Prices checked 10 Oct – 5 Nov 2026.

## Ingredients

Water, Butylene Glycol, Sh-Oligopeptide-1, Sh-Polypeptide-1, Blueberry Fruit Extract, Lecithin, Sorbitan Sesquioleate, 1,2-Hexanediol, Caprylyl Glycol, Peg-60 Hydrogenated Castor Oil, Glycerin, Chlorphenesin, Guaiazulene, Ethylhexylglycerin, Adenosine
## 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/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- United Kingdom: https://lovi.care/skincare/uk/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Ireland: https://lovi.care/skincare/ie/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Germany: https://lovi.care/skincare/de/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- France: https://lovi.care/skincare/fr/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots (this page)
- Italy: https://lovi.care/skincare/it/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Netherlands: https://lovi.care/skincare/nl/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Spain: https://lovi.care/skincare/es/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Canada: https://lovi.care/skincare/ca/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Australia: https://lovi.care/skincare/au/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Singapore: https://lovi.care/skincare/sg/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- Saudi Arabia: https://lovi.care/skincare/sa/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots
- United Arab Emirates: https://lovi.care/skincare/ae/p/dear-klairs/midnight-blue-youth-activating-drop/for/dark-spots