Leucosidea Sericea Leaf Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: July 1, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Leucosidea Sericea Leaf Extract?

Leucosidea Sericea Leaf Extract is a plant based ingredient derived from the soft silver green leaves of Leucosidea sericea, a shrub native to the highlands of South Africa and Lesotho. The leaves are naturally loaded with flavonoids, tannins and other phenolic compounds that give the extract its antioxidant and soothing abilities. For generations local communities used the plant in home remedies for irritated skin which drew interest from modern formulators looking for gentle yet effective botanical actives.

To obtain the extract, freshly harvested leaves are cleaned, dried then ground before undergoing solvent or water based extraction. The liquid is filtered, concentrated and often standardized to a specific level of polyphenols to ensure consistent performance in skincare formulas.

You will usually spot Leucosidea Sericea Leaf Extract in products designed for oily or blemish prone skin such as mattifying moisturizers, detox clay masks and lightweight anti shine serums. Its calming and protective profile also makes it a useful addition to anti aging creams, after sun lotions, scalp tonics and multipurpose balms that aim to keep the skin barrier comfortable and balanced.

Leucosidea Sericea Leaf Extract’s Cosmetic Benefits/Uses

This botanical multitasker brings several helpful properties to a formulation

  • Anti-Sebum: Helps regulate excess oil on the skin surface so textures stay fresh and shine free throughout the day
  • Antimicrobial: Limits the growth of breakout causing bacteria which supports clearer looking skin and a healthier scalp environment
  • Antioxidant: Neutralizes free radicals generated by pollution and UV exposure to reduce the look of premature aging and dullness
  • Skin Conditioning: Provides a light soothing feel that leaves skin soft supple and more resilient to everyday stress
  • Emollient: Offers a delicate cushioning effect that smooths rough patches without feeling heavy or greasy

Who Can Use Leucosidea Sericea Leaf Extract

This extract is especially handy for oily or combination skin since it helps dial down extra shine while still feeling light enough for normal skin. Sensitive skin usually tolerates it well thanks to its calming antioxidants. Very dry skin can still enjoy the ingredient but may need a richer cream alongside it to keep moisture levels up.

Leucosidea Sericea Leaf Extract is entirely plant based which makes it suitable for both vegetarians and vegans, provided the finished formula has not been tested on animals.

No specific safety warnings exist for pregnant or breastfeeding women, yet research on botanical actives in these groups is often limited. This is not medical advice so anyone expecting or nursing should show the full ingredient list of any product to their doctor before use.

The extract does not increase sensitivity to sunlight and can even lend antioxidant support against everyday UV stress. It plays well with most common skincare ingredients and remains stable in a wide pH range so formulators can pair it with acids, niacinamide or retinoids without trouble.

Potential Side Effects/Adverse Reactions

Reactions to topically applied Leucosidea Sericea Leaf Extract vary person to person. The points below cover potential effects though most users will not experience them when the ingredient is properly formulated and used as directed.

  • Mild redness or stinging in people allergic to the Rosaceae plant family
  • Contact dermatitis if skin is highly reactive to plant polyphenols
  • Feeling of tightness or flakiness on very dry skin when used in high strength formulas
  • Eye irritation if the product accidentally gets into the eyes

If any uncomfortable reaction occurs stop using the product and seek advice from a qualified healthcare professional or dermatologist.

Comedogenic Rating

Rating: 1 out of 5. Leucosidea Sericea Leaf Extract is water based and low in lipids so it does not clog pores easily. Its tannins actually help reduce surface oil which further lowers the risk of blocked follicles. This makes the extract friendly for skin that is prone to acne or breakouts. People with very reactive skin should still consider the overall formula because heavy carriers or waxes can raise the comedogenic load even if the plant extract itself is light.

Summary

Leucosidea Sericea Leaf Extract offers five main perks: it curbs excess sebum, fights microbes, mops up free radicals, soothes the skin surface and delivers a soft emollient feel. These effects come from its natural mix of polyphenols, flavonoids and gentle tannins that calm inflammation, limit bacterial growth and protect cell lipids from oxidation.

The ingredient sits in a niche corner of the market, popular with brands that focus on South African botanicals or oily skin solutions yet still under the radar compared with classics like green tea or aloe.

Overall safety is high with very few reports of irritation or sensitization. Still, every formula is unique so it is smart to patch test any new product to make sure your skin agrees with the full blend of ingredients.

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