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Moumoujus

Benzophenone-7.

Insufficient Data CAS 85-19-8 / UV ABSORBER

A chlorinated UV absorber primarily utilized as a photostabilizer to preserve the aesthetic and chemical integrity of cosmetic formulations. By absorbing ultraviolet radiation, it prevents the degradation of delicate ingredients like fragrances and pigments when exposed to light.

Summary

UV Absorber Light Stabilizer

Science

Mechanism of Action

Benzophenone-7 acts as a molecular shield through its benzophenone nucleus. It captures UVA and UVB photons and dissipates this energy through resonance stabilization and photoabsorption, ensuring that the energy does not trigger oxidative reactions or the breakdown of other compounds within the product.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 A 2014 review by the American Contact Dermatitis Society confirmed a lack of documented allergic reactions specifically for this variant, though noted its rarity in modern skincare compared to Benzophenone-3.
  2. 02 The 2021 CIR safety update excluded this ingredient due to its unique chlorinated structure and insufficient data regarding its current industrial usage levels.

Transparency

Dusting Analysis

Not commonly dusted

Benzophenone-7 is rarely used in active skincare concentrations; its presence is typically functional rather than therapeutic, aimed at protecting the formula rather than treating the skin.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly photostable but sensitive to extreme heat, which may release hydrogen chloride. It is insoluble in water but exhibits excellent solubility in organic solvents and oil phases.

Synergies

  • Fragrance oils
  • Synthetic colorants

Conflicts

  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Moderate

Not recognized as a GRASE sunscreen active by the FDA. Its chlorinated status differentiates its metabolic profile from other benzophenones, leading to its exclusion from recent broad safety assessments due to lack of specific data.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Moderate
Comedogenicity Low

Our Assessment

Verdict

Insufficient Data

While effective at protecting formulas from UV-induced fading, its chlorinated structure and lack of recent safety data make it a questionable choice for precision skincare.

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