Humectant

Biota Orientalis Leaf Extract

INCI: BIOTA ORIENTALIS LEAF EXTRACT

Reviewed by Rosie · Last updated 14 Aug 2026

A plant extract with traditional use and emerging evidence for purifying and antioxidant activity

Best For Skin Types

All, Dry, Combination

Addresses

Dryness, Hydration

Usage Frequency

Daily

What Is Biota Orientalis Leaf Extract?

Biota Orientalis Leaf Extract comes from the foliage of Biota orientalis (also known as Thuja orientalis), a coniferous tree native to Asia. The extract is obtained through processing the leaves and contains a range of plant compounds including monoterpenes and other phytochemicals.

In skincare formulations, this ingredient is primarily used as a humectant — a substance that helps draw moisture into the skin and maintain hydration. Beyond hydration, traditional medicine has long valued this plant for various properties, and contemporary research is beginning to examine its potential benefits in topical applications.

How It Works

As a humectant, Biota Orientalis Leaf Extract works by drawing water molecules from deeper skin layers and the surrounding environment into the epidermis, helping to maintain skin hydration and plumpness.

The plant's bioactive compounds — primarily monoterpenes and other phytochemicals — are thought to contribute antioxidant and antimicrobial effects, though the specific mechanisms in topical skincare applications require further research.

Clinical Evidence & References

Research into Biota orientalis has primarily focused on internal or systemic applications, with studies examining antimicrobial, antiviral, and antioxidant properties in laboratory and animal models. Some evidence suggests the extract may have broad-spectrum antimicrobial activity, though direct comparisons with other topical ingredients are limited.

Evidence specifically supporting its use in skincare formulations remains preliminary. While traditional use and chemical composition suggest potential benefits, robust clinical trials evaluating efficacy and safety in cosmetic products are lacking. Further research is needed to establish optimal concentrations and measurable benefits for skin health.

How to Use

This ingredient is typically found in moisturisers, serums, and hydrating formulations where it works alongside other humectants and emollients. It can be used daily as part of a regular skincare routine. If using a product containing this extract, apply to clean skin and follow with an occlusive moisturiser to seal in hydration, particularly in dry conditions.

Safety & Precautions

Biota Orientalis Leaf Extract is generally well-tolerated in topical skincare products. As with any plant-derived ingredient, patch testing is advisable for those with known sensitivities to botanical extracts.

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