GEOGUARD 221

Benefits:

• Broad-spectrum protection (covers bacteria, yeast, and mold).

• Widely accepted in natural and organic cosmetic certifications.

• Compatible with a wide variety of personal care products (creams, lotions, shampoos, serums, toners, gels).

• Works effectively in formulas with a pH range of 2.0–7.0, giving flexibility in formulation.

• Offers a clean-label preservative option for formulators who want to avoid parabens, formaldehyde donors, or controversial synthetics.

• Stable and easy to use, as it dissolves in water without the need for strong solubilizers.

How to Use:

• Usage rate: Typically 0.2%–1.2% of the total formulation.

• Best added during the cool-down phase (below 40°C) to maintain preservative strength.

• Ensure final product pH is between 2–7, as outside this range the preservative becomes less effective.

• Works in both leave-on and rinse-off products, making it versatile.

• Often used together with chelators (like EDTA) or antioxidant systems for extra stability in complex formulas.

Safety:

• Approved globally and by natural cosmetic standards (ECOCERT, COSMOS, Soil Association).

• Considered safe at recommended usage levels and does not release formaldehyde or parabens.

• It can occasionally cause mild irritation or sensitivity in people with very reactive skin, especially at higher concentrations.

• Not recommended for aerosol sprays due to inhalation risk, but safe for lotions, creams, serums, cleansers, and hair products.

• Always patch test finished products before widespread use.