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Ingredient directory

Achillea Millefolium Flower Water

Yarrow Flower Water is a multi-functional botanical ingredient recognized for its soothing, antioxidant, and astringent properties, promoting balanced and healthy skin. It supports skin conditioning and can be incorporated into a wide range of skincare formulations.

Directory entry · Individual source review pending

This profile is awaiting an individual source review. Treat its ratings, dose estimates and compatibility labels as provisional; they are not medical advice or proof of a finished product’s effects.

soothing antioxidant astringent skin conditioning

Science

Mechanism of Action

It operates through anti-inflammatory pathways by inhibiting COX and PGE2, provides astringent effects via tannins and flavonoids to refine pores, and offers antioxidant protection by scavenging ROS. Additionally, it aids in tissue regeneration and wound healing through accelerated epithelialization.

Research

Clinical Evidence

Medium confidence
Effective range 0.04–0.5%
Optimal

0.5%

Key findings

  1. 01 HRIPTs involving 53 and 107 subjects demonstrated that formulations containing 0.04% and 0.1% yarrow extract were non-irritating and non-sensitizing.
  2. 02 A study showed that 0.5% Achillea millefolium extract in nanoemulsions significantly increased antioxidant activity and synergistically boosted SPF from 14 to 22 when combined with chemical filters.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 5.5
0 7 14

Stability

Highly stable in aqueous systems, with optimal formulation pH around 5.0 to preserve phenolic compounds and align with skin's natural acidity.

Synergies

  • Chemical filters (for SPF enhancement)

Conflicts

  • strong oxidizing agents
  • strong acids
  • strong alkalis

Safety

Safety Profile

CIR Status
Safe as used
Max tested
0.04%
Sensitization risk Low

The CIR Expert Panel concluded it is safe as used when formulated to be non-sensitizing. Individuals with allergies to the Asteraceae/Compositae family should exercise caution.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Achillea Millefolium Flower Water is a valuable ingredient offering soothing, antioxidant, and astringent benefits with a good safety profile for diverse skin types.

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