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Hair Conditioning

TETRAMETHYL PYRAZOLYLPYRIMIDINE HCL

CAS 471264-17-2 Updated
58

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A xanthine-like compound used in hair-growth serums. Pharmacologically active and not well-reviewed publicly for cosmetic safety, so used cautiously and only on scalp.

Function

SKIN CONDITIONING

Skin benefits

  • Promoted for hair growth and follicle stimulation
  • Caffeine-like xanthine analog
  • Used at low percentages

Known concerns

  • Pharmacologically active (PDE-inhibitor analog)
  • Limited published cosmetic safety review
  • HCl salt — pH adjustment needed in formulation
  • Possible scalp irritation in sensitive users

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.