About the product

What Is It:

The perfect cocktail for your skin, Su:m37 Secret Repair Concentrate Serum is a splendid mix of Korean hanbang ingredients, naturally aged ferments, and botanical extracts. As pleasurable to use as it is effective, this serum is an excellent weapon for your anti-aging arsenal. Its rich texture penetrates deep into the skin to provide brightening, moisturizing, and plumping effects. You’ll see both instant bounciness and longterm anti-aging results. Fine lines are banished and a youthful brightness will be restored to your complexion.
Su:m37 Secret Repair Concentrate Serum uses ferments aged 23 years that work to not only improve the look of skin, but to repair it. The lightweight gel texture belies a densely rich formula that works hard to feed the skin at a cellular level. Skin elasticity and firmness are restored with regular use and a renewed brightness is noticeable almost immediately. This serum is a must-try—indulge your skin with one of the most outstanding serums in the Korean beauty world. Discover the luxurious world of Su:m37, and see the results that only their Secret Repair Concentrate Serum can bring!
K-beauty vlogger Jen behind MeejMuse reviews the serum here:

Our insight:

Su:m37 Secret Repair Concentrate Serum has long been a favorite of skincare bloggers, influencers, and beauty journalists including Kerry Thompson of Skin & Tonics! She gets behind the science here. She says:

As for immediate results, I noticed a marked increase in the “bounciness” of my skin after about a week and a half, a quality which continues to be present to this day. I continually notice a temporary softening of fine lines (mine are in my eye area). I also experienced an overall brightening and a lightening of post-inflammatory hyperpigmentation over the duration of this product’s usage, but I am extremely hesitant to attribute that to this serum since I’m also using other products with far more powerful lightening/brightening properties. This serum also gives me an extra layer of non-greasy moisture, which is always welcome for my dry skin type. Additionally, I find it to be extremely soothing, particularly when I’ve leaned a little too hard on my AHA or BHA treatments.

How to use:

After applying toner, pump 2 to 3 times and gently pat into your skin to promote absorption.


Water, Glycerin, Dipropylene Glycol, PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin, Dimethicone, Glyceryl Polymethacrylate, 1,2-Hexanediol, Bis-PEG-18 Methyl Ether Dimethyl Silane, Lactobacillus/Soybean Ferment Extract, Cyclopentasiloxane, Niacinamide, Methyl Trimethicone, Panthenol,  Phenyl Trimethicone, Propylene Glycol, PEG-150, Pistacia Lentiscus (Mastic) Gum, Caprylic/Capric Triglyceride, Saccharomyces/Grape Ferment Extract, Lactobacillus/Pear Juice Ferment Filtrate, Rosmarinus Officinalis (Rosemary) Leaf Extract, Thymus Vulgaris (Thyme) Extract, Salvia Officinalis (Sage) Leaf Extract, Lactobacillus/Wasabia Japonica Root Ferment Extract, Lactobacillus/Water Hyacinth Ferment, Lactobacillus/Ginseng Root Ferment Filtrate, Lactobacillus/Rye Flour Ferment, Monascus/Rice Ferment, Saccharomyces/Xylinum/Black Tea Ferment, Glycyrrhiza Glabra (Licorice) Root Extract, Diospyros Kaki Fruit Extract, Curcuma Longa (Turmeric) Root Extract, Actinidia Polygama Fruit Extract, Cassia Obtusifolia Seed Extract, Ipomoea Batatas Root Extract, Trichosanthes Kirilowii Root Extract, Lycium Chinense Fruit Extract, Citrus Unshiu Peel Extract, Lonicera Japonica (Honeysuckle) Flower Extract, Panicum Miliaceum (Millet) Seed Extract, Glechoma Hederacea Extract, Platycodon Grandiflorum Root Extract, Acer Palmatum Leaf Extract, Daucus Carota Sativa (Carrot) Root Extract, Codonopsis Lanceolata Root Extract, Camellia Japonica Leaf Extract, Rubus Idaeus (Raspberry) Fruit Extract, Melissa Officinalis Extract, Lippia Citriodora Leaf Extract, Allium Sativum (Garlic) Bulb Extract, Portulaca Oleracea Extract, Chaenomeles Sinensis Fruit Extract, Raphanus Sativus (Radish) Root Extract, Ficus Carica (Fig) Fruit Extract, Musa Sapientum (Banana) Fruit Extract, Ocimum Basilicum (Basil) Leaf Extract, Citrus Aurantium Bergamia (Bergamot) Leaf Extract, Centella Asiatica Extract, Prunus Persica (Peach) Fruit Extract, Beta Vulgaris (Beet) Root Extract, Eriobotrya Japonica Leaf Extract, Malus Domestica Fruit Extract, Morus Bombycis Leaf Extract, Prunus Armeniaca (Apricot) Fruit Extract, Zingiber Officinale (Ginger) Root Extract, Taraxacum Officinale (Dandelion) Leaf Extract, Equisetum Arvense Extract, Artemisia Princeps Leaf Extract, Brassica Oleracea Capitata (Cabbage) Leaf Extract, Allium Cepa (Onion) Bulb Extract, Houttuynia Cordata Extract, Sasa Veitchii Leaf Extract, Nelumbo Nucifera Root Extract, Cucumis Sativus (Cucumber) Fruit Extract, Plantago Major Seed Extract, Hemerocallis Fulva Flower Extract, Citrus Junos Fruit Extract, Akebia Quinata Extract, Ginkgo Biloba Nut Extract, Crataegus Cuneata Fruit Extract, Grifola Frondosa Fruiting Body Extract, Prunus Salicina Fruit Extract, Perilla Frutescens Leaf Extract, Geranium Robertianum Extract, Anemarrhena Asphodeloides Root Extract, Rehmannia Chinensis Root Extract, Sesamum Indicum (Sesame) Seed Extract, Undaria Pinnatifida Extract, Acorus Calamus Root Extract, Cichorium Intybus (Chicory) Root Extract, Anthemis Nobilis Flower Extract, Carica Papaya (Papaya) Fruit Extract, Phaseolus Angularis Seed Extract, Mentha Piperita (Peppermint) Flower/Leaf/Stem Extract, Corthellus Shiitake (Mushroom) Extract, Helianthus Annuus (Sunflower) Seed Extract, Schizonepeta Tenuifolia Extract, Carthamus Tinctorius (Safflower) Flower Extract, Saccharomyces/Barley Seed Ferment Filtrate, Saccharomyces/Potato Extract Ferment Filtrate, Lactobacillus/Pumpkin Ferment Extract, Lavandula Angustifolia (Lavender) Flower Extract, Rosa Canina Fruit Extract, C14-22 Alcohols, Phytosqualane, PEG-60 Hydrogenated Castor Oil, Ceramide 3, Tromethamine, Algae Extract, Macadamia Integrifolia Seed Oil, Triethylhexanoin, Carbomer, Macrocystis Pyrifera Extract, Butyrospermum Parkii (Shea) Butter, Arachidyl Glucoside, PEG-10 Rapeseed Sterol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Butylene Glycol, Sodium Polyacrylate, Algin, Wine Extract, Glyceryl Stearate, Theobroma Cacao (Cocoa) Extract, Glyceryl Acrylate/Acrylic Acid Copolymer, Stearic Acid, Adenosine, Cholesterol, PEG-100 Stearate, Dimethiconol, Mica, Titanium Dioxide, Glycereth-20, CI 77491, Polymethylsilsesquioxane, Hydrogenated Lecithin, Xanthan Gum, Trisodium EDTA, Fragrance

Brand info:

Su:m37, whose name is derived from the Korean word for “breath” and the optimal temperature for fermentation, specializes in naturally fermented skincare and makeup, free of fragrances, artificial colors, and synthetic preservatives. Every season, the lab of the prestige brand — the only fermentation research institute in the country — slowly ferments every part of 86 different kinds of seasonal plants in the countryside of Gangwon-do, South Korea. The essence extracted from this fermentation is used in Su:m37 products. Su:m37 has reached cult status among beauty aficionados all over the world for its Miracle Rose Cleansing Stick, an all-natural makeup removing foaming cleanser. Other bestsellers include the Secret Essence, Time Energy Skin Resetting line, and Water-full line. W2Beauty is proud to be one of the few online sellers of the entire range of Su:m37 skincare and makeup products.

Reviews & Comments 1


I tried this product as a sample I got in a previous order. This product has a thick texture and spreads easily, you only need a little bit for your face. What I loved was the texture, it felt luxurious on the skin and the results were something! It quickly absorbed into the skin, leaving it with an amazing glow, one of healthy- looking skin.