Fragrance

Ilex Paraguariensis Leaf Extract

INCI: ILEX PARAGUARIENSIS LEAF EXTRACT

Reviewed by Emma · Last updated 14 Aug 2026

Also known as: Ilex Paraguariensis Leaf Extract

A polyphenol-rich plant extract with antioxidant and skin-conditioning properties

Best For Skin Types

All, Mature, Combination

Addresses

Fine lines, Dryness, Skin ageing

Usage Frequency

Daily

Ilex Paraguariensis Leaf Extract products at Skintique

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What Is Ilex Paraguariensis Leaf Extract?

Ilex paraguariensis leaf extract comes from yerba mate, a South American plant whose leaves have been used traditionally for centuries. The extract is rich in polyphenols—naturally occurring compounds with antioxidant activity. In skincare, it functions primarily as a skin conditioner and fragrance component.

The polyphenols in this extract may help protect skin from oxidative stress, which occurs when free radicals accumulate and damage skin cells. This type of damage is linked to visible signs of aging and UV-induced skin changes.

How It Works

The extract works primarily through its polyphenol content, which acts as an antioxidant. Antioxidants neutralise free radicals—unstable molecules that damage skin cells and accelerate aging. By scavenging these free radicals, the extract may reduce oxidative stress and help protect skin's structural proteins.

Additionally, some of the alkaloid compounds in yerba mate leaf extract may inhibit human neutrophil elastase, an enzyme responsible for breaking down elastin. By slowing this degradation, the extract could theoretically help maintain skin elasticity, though more human studies are needed to confirm this benefit in topical skincare.

Clinical Evidence & References

In vitro and animal studies suggest that yerba mate leaf extract has antioxidant properties and may modulate genes associated with skin aging. Research indicates the extract increases antioxidant enzyme activity in skin exposed to UVB radiation and shows inhibitory effects against elastase in laboratory settings.

However, human clinical data on this ingredient in topical formulations is limited. The evidence base is strongest for its antioxidant potential; claims around elastin preservation and visible anti-aging effects would benefit from further human trials. It appears to be well-tolerated in formulations, though individual sensitivity responses have not been extensively documented.

How to Use

Ilex paraguariensis leaf extract is typically found in small concentrations within skincare products, often as part of a broader antioxidant blend. Use products containing this ingredient consistently as part of your daily routine to support cumulative antioxidant protection. It works best when layered with a dedicated sunscreen, as antioxidants are most effective when supporting—not replacing—UV protection.

Safety & Precautions

Ilex paraguariensis leaf extract is generally well-tolerated in topical skincare. Patch test if you have known sensitivity to plant extracts, particularly from the holly family.

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Other forms of Ilex Paraguariensis Leaf Extract

These appear on ingredients lists under different names but are the same substance. Ilex Paraguariensis Leaf Extract is the common form.

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