Mica with INCI: CI77019

Based on the search of the ingredients on the website, a Mica product specifically listed with the INCI name CI77019 was not found.

Comparison of Phenoxyethanol and Ethylhexylglycerin as Preservatives

Both Phenoxyethanol and Ethylhexylglycerin are commonly used preservatives in cosmetic formulations, but they have different properties and best use cases.

• Phenoxyethanol (Extra Pure):

  • Considered a safe preservative, free from parabens and formaldehyde.
  • Effective against bacteria, but less effective against fungi. Often recommended to be used with other preservatives or in a combination product like Phenoxyethanol SA for broad-spectrum protection.
  • Can be used in all cosmetic products, mixed into the water phase.
  • Avoid heat above 60°C during mixing.
  • Suitable for formulas with a pH between 2-9.
  • Usage rate typically 0.5-1.0% (up to 0.5% in eye products).
  • The Extra Pure grade is specifically noted to reduce the risk of skin irritation compared to ordinary Phenoxyethanol.

• Ethylhexylglycerin:

  • Described as a gentle preservative that does not irritate the skin.
  • It also functions as a humectant, helping to retain skin moisture.
  • Important: It is not suitable for use as a single preservative in a formula. It must be used in combination with other preservatives to provide adequate protection.
  • Can withstand higher heat (up to 120°C) and has a wider pH tolerance (2-12).
  • Usage rate typically 0.3-1.0%.
  • Cannot be dissolved in water alone; requires solvents like propylene glycol or alcohol.

Can they be used interchangeably?

No, they cannot be used interchangeably as direct substitutes. Phenoxyethanol can often be used as a primary preservative (though combining is better), while Ethylhexylglycerin requires co-preservatives to be effective. Their solubility and temperature/pH tolerances also differ.

Which is gentler/less irritating?

Both are considered gentler options compared to older, harsher preservatives. Ethylhexylglycerin is explicitly described as a "Gentle preservative Doesn't irritate the skin." The Extra Pure grade of Phenoxyethanol is formulated to reduce irritation risk. Both are good choices for sensitive skin, but Ethylhexylglycerin is highlighted for its gentleness and lack of irritation.