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ALTHAEA OFFICINALIS LEAF/ROOT EXTRACT.

Valuable CAS 73049-65-7 / SKIN CONDITIONING - EMOLLIENT

Althaea Officinalis Leaf/Root Extract, derived from the marshmallow plant, is a botanical powerhouse recognized for its multi-functional benefits in skincare. Rich in polysaccharides, it delivers intense hydration by forming a protective barrier that minimizes water loss and shields skin from environmental aggressors. This extract also offers significant soothing and antioxidant properties, making it ideal for calming irritation and supporting skin's overall health and resilience.

Hydration Soothing Anti-inflammatory Antioxidant Barrier Support Antimicrobial Skin Regeneration Humectant

Science

This extract primarily functions through its high mucilage content, composed of polysaccharides, which acts as a potent natural humectant. It effectively draws and retains moisture in the skin, simultaneously creating a protective film that diminishes transepidermal water loss (TEWL) and defends against external stressors. Beyond hydration, it possesses anti-inflammatory capabilities to alleviate redness, swelling, and discomfort, alongside antioxidant activity that neutralizes free radicals and mitigates UVA-induced oxidative damage. The extract further supports skin health by helping to preserve natural hyaluronic acid levels and promoting repair, regeneration, and enhanced elasticity, while also demonstrating antimicrobial action against specific gram-positive bacteria.


Research

Medium confidence
Effective range 1–5%
Optimal

N/A

Key findings

  1. 01 An ointment containing 20% marshmallow root extract demonstrated a reduction in skin irritation, suggesting efficacy at higher concentrations for targeted soothing.
  2. 02 In general cosmetic formulations, raw material solutions containing Althaea officinalis extract are typically incorporated at levels ranging from 1% to 5%. Within such solutions, the actual Althaea officinalis root content is approximately 2% to 5%.
  3. 03 Animal studies indicated bacteriostatic effects against Staphylococcus aureus at 330 µg/ml (MIC) and S. mutans at 102 mg/ml. Bactericidal effects were observed against S. aureus at 660 µg/ml (MBC), and against S. mutans and L. acidophilus at 212.5 mg/ml.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 5 – 6.5
0 7 14

Stability

The raw material typically presents as an extract blend containing 2-3% Althaea officinalis, usually dissolved in water and glycerin, ensuring stability within its optimal pH range.


Safety

CIR Status
Insufficient data
Sensitization risk Low

Generally considered safe, non-toxic, and non-irritating for topical cosmetic application; however, manufacturers are responsible for individual product safety assessments. Adverse reactions are rare, though individuals with specific plant allergies, particularly to the Malvaceae family, may experience irritation. The ingredient 'ALTHEA ROOT (ALTHEA OFFICINALIS L.)' holds Generally Recognized As Safe (GRAS) status by FEMA for food flavoring.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Valuable

A highly versatile botanical extract, valued for its significant hydrating, soothing, and protective benefits across a wide range of skin types and cosmetic applications.


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