Plum Extract
INCI: Prunus Salicina Fruit Extract
Antioxidant and skin conditioning agent
About Plum Extract
Plum extract, derived from the fruit of Prunus salicina (also known as Japanese or Chinese plum), is a naturally rich antioxidant and skin conditioning ingredient that has earned its place in premium K-beauty formulations. This extract contains a powerful combination of vitamins A, C, and E, along with organic acids like malic and citric acid, polyphenols, and flavonoids that work synergistically to protect skin from environmental stressors while improving texture and radiance. In Korean skincare philosophy, plum has long been valued for its ability to balance and refine skin, particularly in fermented formulations where its benefits are amplified through biotransformation. The ingredient's gentle exfoliating properties, combined with its antioxidant capacity, make it especially effective for addressing dullness, uneven texture, and early signs of aging without causing irritation. With a low comedogenic rating of 1/5 and a solid safety profile (4/5), plum extract suits nearly all skin types and is increasingly featured in high-performing K-beauty products. Brands like SUM37, known for their natural fermentation expertise, have made plum extract a signature ingredient in their best-selling formulations, demonstrating its effectiveness in real-world applications with consistently high user ratings.
How Plum Extract Works
At the cellular level, plum extract functions through multiple complementary mechanisms. Its high concentration of polyphenols and vitamin C works to neutralize free radicals generated by UV exposure and pollution, preventing oxidative damage to cellular membranes and DNA that leads to premature aging. The organic acids naturally present in plum, particularly malic acid, provide gentle enzymatic exfoliation by loosening the bonds between dead skin cells in the stratum corneum, promoting natural cell turnover without the harsh scrubbing action of physical exfoliants. Meanwhile, the fruit's natural sugars and amino acids function as humectants, attracting and binding moisture to the skin's surface layers. When fermented (as in many premium K-beauty products), the bioavailability of these active compounds increases significantly. Fermentation breaks down larger molecules into smaller peptides and metabolites that can penetrate more deeply into the epidermis, where they stimulate fibroblast activity and support collagen synthesis. The vitamin E content works in tandem with vitamin C to regenerate antioxidant capacity, creating a sustained protective effect that continues even after application.
Plum Extract by Skin Type
Oily Skin
Plum extract is particularly well-suited for oily skin thanks to its gentle exfoliating acids that help prevent pore congestion without stripping natural oils. The antioxidants help regulate sebum oxidation, which can reduce the inflammatory response that leads to breakouts. Its extremely low comedogenic rating (1/5) means it won't clog pores, making it safe for acne-prone individuals.
Dry Skin
For dry skin, plum extract offers dual benefits: the natural fruit sugars act as humectants to draw moisture into the skin, while the vitamin E content helps repair and strengthen the skin barrier. The gentle exfoliation removes flaky dead skin cells that can prevent moisturizers from absorbing properly, allowing your other hydrating products to work more effectively.
Combo Skin
Combination skin benefits from plum extract's balancing properties. The ingredient can address excess oil in the T-zone through gentle exfoliation and antioxidant activity, while simultaneously providing conditioning benefits to drier cheek areas. This makes it ideal for products designed to normalize skin function across different facial zones without over-treating any single area.
Sensitive Skin
Despite containing fruit acids, plum extract is generally well-tolerated by sensitive skin, especially in fermented formulations where the acids are present in gentler forms. The anti-inflammatory polyphenols can actually help calm reactive skin, though those with extreme sensitivity should patch test first. The high safety rating (4/5) reflects its relatively low irritation potential compared to synthetic alternatives.
Normal Skin
Normal skin types can use plum extract as a preventative antioxidant measure to maintain skin health and delay visible aging. The ingredient supports the skin's natural functions without disrupting its already-balanced state, making it an excellent choice for maintenance-focused routines that emphasize long-term skin health over correcting specific concerns.
How to Use Plum Extract
- 1Layer plum extract products after cleansing but before heavier creams to maximize absorption of its water-soluble antioxidants and organic acids.
- 2For enhanced benefits, look for fermented plum formulations (like those from SUM37) where the active compounds have been broken down into more bioavailable forms through natural fermentation processes.
- 3Plum extract pairs exceptionally well with niacinamide and hyaluronic acid in multi-step routines, as the gentle exfoliation it provides helps these ingredients penetrate more effectively.
- 4Morning application is ideal for leveraging plum extract's antioxidant protection against daytime environmental stressors, though it's gentle enough for twice-daily use.
- 5If you're new to chemical exfoliants, plum extract products offer a gentle introduction since the fruit acids are present in lower, more naturally balanced concentrations than standalone AHA/BHA products.
Background
The plum tree has been cultivated in East Asia for over 2,500 years, with both its fruit and blossoms holding significant cultural importance in Chinese, Korean, and Japanese traditions. In traditional Korean medicine (hanbang), plums were valued for their cooling properties and used topically to soothe irritated skin and promote clarity. The fruit's skincare applications evolved significantly with the development of Korean fermentation technology (bal hyo), which has roots in traditional food preservation methods like making maesil-cheong (plum syrup). Modern K-beauty brands discovered that fermenting plum extract with beneficial yeasts and bacteria dramatically enhanced its skincare efficacy by creating smaller molecular compounds and generating additional beneficial metabolites. SUM37, whose name references the optimal fermentation temperature (37°C), pioneered the use of fermented plum in premium skincare formulations, transforming this traditional ingredient into a luxury beauty staple. Today, plum extract represents the successful marriage of ancient Korean botanical wisdom with cutting-edge cosmetic science.
K-Beauty Products with Plum Extract
Secret Rice Nuruk Daily Exfoliating Cleanser
SUM37
Secret Pore Ceramide Bubble Spray Serum
SUM37
Secret Essence
SUM37
Secret Essence Mist
SUM37
Pore Tightener EX
Anua
Red Lacto Collagen Konjac Peeling Gel
Medi-Peel
Beta-Glucan Daily Moisture Cream
iUNIK
Secret Multi Balm
SUM37
Sun-away Velvet Sun Stick Set
SUM37
Secret Multi Pad
SUM37
Frequently Asked Questions
Is plum extract the same as the fruit acids in chemical exfoliants?▼
Why do so many SUM37 products contain plum extract?▼
Can I use plum extract if I'm allergic to stone fruits?▼
Will plum extract help with my large pores?▼
Do I need to use sunscreen when using products with plum extract?▼
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