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BARLERIA PRIONITIS STEM EXTRACT.

Valuable CAS - / FRAGRANCE

A botanical powerhouse derived from the Porcupine Flower, this extract is rich in specialized iridoid glycosides and phenolics. It serves as a multifunctional bio-active that provides robust antimicrobial defense while simultaneously calming inflammatory pathways in the skin.

antioxidant soothing antimicrobial masking

Science

It utilizes a three-pronged approach to skin health: disrupting the cell membranes of pathogenic bacteria to maintain a healthy microbiome, inhibiting COX enzymes to stop the synthesis of pro-inflammatory prostaglandins, and neutralising oxidative stress through direct free-radical scavenging and prevention of lipid peroxidation.


Research

Medium confidence
Effective range 0.008–20%
Optimal

0.5%

Key findings

  1. 01 Demonstrated Minimum Inhibitory Concentration (MIC) of 1.25 mg/mL against pathogenic strains including P. aeruginosa.
  2. 02 Achieved significant DPPH radical scavenging (antioxidant) activity with an IC50 of 81.69 µg/mL.
  3. 03 Shown to be highly effective at 20% concentrations in complex aqueous formulations for microbial control.

Transparency

Commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Because it often serves a dual purpose as a 'fragrance' or 'botonical' on labels, brands frequently use it at negligible levels (below 0.1%) for marketing claims without providing the antimicrobial or antioxidant benefits seen in clinical data.


The Formula

Solubility
Water
Optimal pH 6 – 7.5
0 7 14

Stability

Highly stable in neutral to slightly alkaline environments; however, the active iridoid glycosides are heat-sensitive and may degrade if exposed to high temperatures or highly acidic conditions.

Synergies

  • Niacinamide
  • Hyaluronic Acid
  • Chelating agents

Conflicts

  • Strong oxidizing agents
  • Low pH Ascorbic Acid formulations

Safety

CIR Status
Not reviewed
Pregnancy
Safe
Sensitization risk Low

While not formally CIR-reviewed, it has a documented history in Ayurvedic medicine and is rated as low hazard by EWG. It is generally well-tolerated in topical applications.


Your Skin

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

Our Assessment

Valuable

A versatile botanical active that offers significant soothing and antimicrobial benefits, particularly for congestion-prone and reactive skin types.


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