Melilotus Officinalis 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 Melilotus Officinalis Leaf Extract?

Melilotus officinalis, often called yellow sweet clover, is a flowering herb in the Fabaceae family. The leaf extract is obtained by harvesting the plant’s green leaves, drying them, then soaking them in a solvent such as water or a gentle alcohol to pull out beneficial molecules. Once the liquid is filtered and the solvent is removed, formulators are left with a concentrated extract rich in coumarins, flavonoids and small amounts of tannins. Herbal healers have valued sweet clover for centuries as a soothing compress for the skin, which eventually caught the attention of modern cosmetic chemists looking for plant based conditioners. Today the extract appears in moisturizers, calming masks, after-sun gels, light lotions and eye creams where a touch of botanical care is desired.

Melilotus Officinalis Leaf Extract’s Cosmetic Benefits/Uses

In skincare formulas Melilotus officinalis leaf extract is prized for its single key role: skin conditioning. By depositing a thin, breathable layer of plant derived compounds on the surface of the skin, it helps soften rough patches, supports a smoother texture and leaves the complexion feeling comfortably hydrated.

Who Can Use Melilotus Officinalis Leaf Extract

Melilotus officinalis leaf extract is gentle enough for most skin types including normal, dry, combination and sensitive skin because it focuses on softening and calming rather than exfoliating or deeply cleansing. Very oily or acne prone skin can still use it but may prefer lighter textures such as gels or watery lotions that keep pores from feeling weighed down.

The extract is plant derived with no animal inputs so it fits easily into vegan and vegetarian routines. Formulators typically dissolve the leaves in water or a food grade alcohol rather than animal based solvents which keeps the supply chain cruelty free.

Current research shows no specific concerns for pregnant or nursing women when the ingredient is used topically at cosmetic levels. Still this is not medical advice. Anyone who is expecting or breastfeeding should show the full product label to their doctor before use to be on the safe side.

Unlike citrus oils or certain exfoliating acids the extract does not make skin more sensitive to sunlight so there is no special photo-care needed beyond your usual daily sunscreen.

Potential Side Effects/Adverse Reactions

Side effects from topical Melilotus officinalis leaf extract differ from person to person. The points below list potential issues only and most users will never notice them when the ingredient is included correctly in a finished product.

  • Redness or itching in very sensitive skin
  • Allergic contact dermatitis for those allergic to plants in the Fabaceae family
  • Mild stinging if applied on freshly shaved or broken skin
  • Easy bruising for people on prescription blood thinners due to the plant’s natural coumarin content, even though absorption is low

If any of these reactions occur stop using the product and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 1/5

Melilotus officinalis leaf extract is mostly made up of water soluble flavonoids and coumarins with very little oil, so it sits lightly on the skin and is unlikely to block pores. Because it does not leave a greasy residue its tendency to trigger whiteheads or blackheads is low. This makes the extract generally suitable for people who are prone to acne or frequent breakouts.

As with any plant extract the finished product’s full formula matters. A gel or lightweight lotion that uses this extract will keep the overall comedogenic load low while a thick butter or balm with heavy oils could still clog pores even if the extract itself is mild.

Summary

Melilotus officinalis leaf extract is valued in skin care for one main job: skin conditioning. By laying down a thin veil of plant molecules it softens rough spots, calms minor redness and helps the surface hold on to moisture. The ingredient is not a headline star like hyaluronic acid or vitamin C, yet formulators appreciate its gentle support role in soothing creams, after sun gels and daily moisturizers.

Safety wise the extract is well tolerated by most skin types with only rare reports of allergy or irritation. It carries a very low comedogenic score so even acne prone users can usually enjoy it. As with any new product a short patch test on a small area is smart to be sure your skin agrees before you apply it more widely.

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