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AVENA SATIVA KERNEL FLOUR.

Essential CAS 134134-86-4 / 84012-26-0 / ABRASIVE, ABSORBENT, BULKING, VISCOSITY CONTROLLING

Commonly known as Colloidal Oatmeal, this finely milled flour is a multifaceted botanical powerhouse used to soothe inflammatory skin conditions. It bridges the gap between traditional herbalism and modern dermatology by providing a protective, bioactive film that fortifies the skin barrier.

Soothing agent Skin protectant Antioxidant Emollient Mattifier

Science

It employs a four-fold action: creating a physical occlusive barrier to halt transepidermal water loss (TEWL); utilizing avenanthramides and beta-glucans to suppress pro-inflammatory cytokines like IL-8; neutralizing oxidative stress via vitamin E and phenolic compounds; and acting as a natural buffer to stabilize the skin's acidic pH.


Research

High confidence
Effective range 0.007–1%
Optimal

1%

Key findings

  1. 01 Clinical results demonstrated that a 1.0% concentration provides measurable relief from dryness, scaling, and itching within 24 hours of application.
  2. 02 Studies on atopic dermatitis patients confirmed significant moisture repair and barrier enhancement over a 4-week period with no adverse reactions.
  3. 03 FDA classification as a Category I Over-the-Counter skin protectant is achieved at concentrations as low as 0.007%.

Transparency

Not commonly dusted
Min. effective
0.007%
Red flag below
0.005%

Because the FDA recognizes efficacy for skin protection at exceptionally low levels (0.007%), it is difficult to 'dust' this ingredient. However, for meaningful barrier repair and clinical improvement in dryness, formulations should aim for the 1.0% mark.


The Formula

Solubility
Water
Optimal pH 5.5 – 6.5
0 7 14

Stability

Forms a stable colloidal suspension in aqueous environments via Brownian motion; avoid high-heat processing to protect delicate phytochemicals.

Synergies

  • Humectants
  • Ceramides
  • Barrier-repair lipids

Conflicts

  • High alcohol concentrations (causes precipitation)
  • Strong oxidizing agents
  • Extreme pH levels below 4.5 or above 8.5

Safety

CIR Status
Safe as used
Max tested
84.4%
Pregnancy
Safe
Sensitization risk Low

Extremely high safety profile; utilized up to 84.4% in rinse-off applications and 1% in leave-on powders and lotions.


Your Skin

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

Our Assessment

Essential

A gold-standard botanical for barrier restoration and inflammation control with a peerless safety record.


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References