su:m37º Secret Essence Double Concentrate for skin with dark spots
Fermented
Sodium Hyaluronate
Niacinamide
Panax Ginseng Extract
PeptidesHigh
- SuperiorNormal Skin Fit
- HighEffectiveness
- HighSafety
A great choice for skin with dark spots; a few moisturizers fit it even better.
This fit is calculated for the concerns frequently associated with dark spots: hyperpigmentation, sun spots, and uneven skin tone. For scores and recommendations based on your full skin profile, including your 12D face scan results and any goals or preferences you have, please use the Lovi app.
Page built Nov 8, 2026How the Fit score works
Lovi Assistant explains
- Excellent suitability for your normal skin is provided by Saccharomyces Ferment Filtrate and Glycerin, which offer superb humectant action and barrier repair.
- Moderate benefits for pigmentation and general skin health are delivered through Niacinamide and Saccharomyces Ferment Filtrate, supporting overall skin wellness.
- The product is safe for your normal skin, with no risks of irritation due to the absence of prohibited or harsh ingredients.
How to apply
- Could be used as part of your AM and PM routine. Start using it 3 times a week and move to daily use if your skin likes it.
- Apply this moisturizer after your cleanser and toner, right before your morning SPF.
- Gently press a small amount of the moisturizer into your skin. Avoid rubbing it too hard so it absorbs nicely.
- For the best moisture, you can apply it when your skin is slightly damp. This helps your skin stay soft and happy.
- Remember to avoid the eye area when applying. Always do a patch test before your first use.
People Say
★4.8Overall rating based on 1.0k+ reviewsBased on a very large amount of data, users find this product to be a potent anti-aging booster that deeply hydrates and refines skin texture, particularly benefiting dry or mature skin by improving firmness and radiance without irritation. Its rich consistency may be too heavy for oily skin types or humid conditions, and its high price point is frequently mentioned.
Highlights
Deep hydration Often Mentioned
- “combats deep dryness”
- “leaves skin incredibly hydrated”
- “moisturizes like a dream”
- “perfect for winter”
Refined texture Often Mentioned
- “skin feels smoother”
- “refines skin texture”
- “softens fine lines”
- “creates a perfect canvas”
High price point Often Mentioned
- “bit pricey”
- “expensive for the amount”
- “value for money is low”
- “costly for regular use”
Elegant absorption Sometimes Noted
- “absorbs instantly”
- “non-sticky finish”
- “silky serum-like feel”
- “penetrates deeply”
Gentle and soothing Sometimes Noted
- “no allergic response”
- “calming for sensitive skin”
- “strengthens skin barrier”
- “mild formula”
Too rich for oily Sometimes Noted
- “heavy for oily skin”
- “too rich for summer”
- “caused slight greasiness”
- “better for dry skin”
Availability issues Rarely Noted
- “hard to find”
- “often out of stock”
- “shipping takes long”
- “discontinued in some regions”
Scent concerns Rarely Noted
- “herbal fermented scent”
- “smell is distinct”
- “mild citrus hint”
- “fragrance might bother some”
Sources: lovi.care, oliveyoung.com, hwahae.co.kr, reddit.com, yesstyle.com, incidecoder.com, and more
Questions and answers
What makes su:m37º Secret Essence Double Concentrate a great fit for skin with dark spots?
This moisturizing treatment is a great fit because it contains niacinamide and fermented ingredients that help fade dark spots and improve overall skin wellness. It is also safe for daily use and unlikely to cause irritation.
The British Journal of Dermatology, 2002Journal of Clinical Medicine, 2023
Which ingredients make this treatment a good fit for skin with dark spots?
Niacinamide and fermented ingredients make this treatment a great fit for skin with dark spots. Niacinamide helps fade dark spots and brighten skin tone, while fermented ingredients support overall skin health.
The British Journal of Dermatology, 2002Journal of Clinical Medicine, 2023
What does Fermented do for skin with dark spots?
Fermented ingredients help fade dark spots and even out skin tone by lowering melanin production. These extracts also offer antioxidant benefits that protect your skin from environmental damage.
Journal of Cosmetic Dermatology, 2022Bioscience, Biotechnology, and Biochemistry, 2011
What does Hyaluronic Acid do for skin with dark spots?
Hyaluronic acid is unlikely to directly fade dark spots, but it helps keep dry and uneven skin plump and deeply hydrated. To effectively target dark spots, this type of skin needs brightening ingredients like vitamin C or niacinamide alongside your hydrator.
Where does it go in a skincare routine for skin with dark spots?
This moisturizing treatment goes in the evening routine after cleansing and before moisturizing, to keep things simple and safe around sun exposure. Using it regularly helps fade dark spots while keeping your skin calm and hydrated.
Journal of Clinical Medicine, 2023The British Journal of Dermatology, 2002
Can I use this treatment with retinol, and in what order?
You can use this treatment with retinol by applying the treatment first and following it with retinol. This combination helps keep skin hydrated while you use retinol, and it is unlikely to cause irritation.
How often should I use it?
You can use this treatment in your evening routine, applying it after cleansing and toning. Daily application of this type of moisturizer helps keep skin hydrated and supports a smooth, bright look.
Journal of Cosmetic Dermatology, 2020Health Science Reports, 2021
Can this treatment clog pores, cause breakouts or purging for skin with dark spots?
This treatment is unlikely to clog pores or cause breakouts for skin with dark spots because it has a very safe formula with no harsh or prohibited ingredients. It is well tolerated and helps keep skin calm and smooth without triggering irritation.
Can I use it around the eyes or on my body?
You can use this moisturizing treatment on your body, but it is not specifically tested for the thin skin around the eyes. Because it contains soothing ingredients like glycerin and sodium hyaluronate, it helps keep normal skin soft and hydrated without irritation.
Surgical and Radiologic Anatomy, 2002Clinical, Cosmetic and Investigational Dermatology, 2017
Is this treatment fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying alcohol.
What the research says
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, 2017Niacinamide 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, 2002Daily application of Galactomyces ferment filtrate-containing skin products for 12 months significantly and cumulatively reversed 11-year facial skin aging parameters of wrinkles, hyperpigmented spots, and roughness, and increased skin hydration in 86 female volunteers.
Journal of Clinical Medicine, 2023Topical application of Epidermidibacterium Keratini EPI-7 ferment filtrate improved skin barrier function, elasticity, dermal density, and modulated skin microbiome diversity compared to a placebo in Asian women.
International Journal of Molecular Sciences, 2023Applying a lotion containing probiotic ferment lysate VHProbi® Mix R for 30 days significantly decreased transepidermal water loss and skin redness while significantly increasing skin moisturization compared to baseline in participants with sensitive skin.
Scientific Reports, 2023Topical application of 1.0% Lactobacillus ferment from jojoba cake significantly increased skin collagen fluorescence compared to baseline and placebo cream over 56 days in 46 individuals.
International Journal of Cosmetic Science, 2026Topical 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, 2011Topical 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, 2022Treatment 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, 2019Topical 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, 2021Topical 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, 2008Topical 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, 2005Enzyme-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, 2015A 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, 2022A 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
Ingredients
Saccharomyces Ferment Filtrate, Glycerin, Butylene Glycol, Niacinamide, Panthenol, Sodium Hyaluronate, Adenosine, Betaine, Tocopherol, Allantoin, Lactobacillus Ferment, Bifida Lysate Ferment, Camellia Sinensis Leaf Extract, Centella Asiatica Extract, Chamomilla Recutita Flower Extract Matricaria Flower Extract, Rosa Damascena Flower Water, Lavandula Angustifolia Oil Lavender Oil, Bergamot Oil Fruit, Pelargonium Graveolens Oil Flower, Sodium Citrate, Citric Acid, Phenoxyethanol, Ethylhexylglycerin
Behind this fit score
Lovi calculates every fit score from the full ingredient list with brand-independent rules our 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.
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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
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Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
How does it fit your skin?
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