Cleansing Water Turbidity

Subject: Cleansing Water Turbidity

Regarding the issue of your Micellar Cleansing Water turning cloudy white after 2 months, using PEG-6 Caprylic/Capric Glycerides and Poloxamer 184, this change typically indicates instability or contamination over time.

Several factors could cause this turbidity:

• Microbial Contamination: This is the most common reason for cloudiness developing in water-based cosmetic products. Bacteria, yeast, or mold can grow if the preservation system is inadequate or if contamination occurred during manufacturing or filling. Microbial growth leads to biomass and metabolic byproducts that cause turbidity.
• Ingredient Instability or Incompatibility: While PEG-6 Caprylic/Capric Glycerides and Poloxamer 184 are generally stable, other ingredients in the formulation (preservatives, fragrances, extracts, etc., which were not listed) or impurities could precipitate or become unstable over time, causing cloudiness.
• Precipitation of Minor Components: Even small amounts of waxes, oils, or other less soluble components (perhaps introduced as impurities or from extracts) might precipitate out over time, especially with temperature fluctuations.
• Changes in pH: A significant shift in pH over time could affect the solubility or stability of certain ingredients.

To determine the exact cause, it is recommended to:

• Check the effectiveness and concentration of your preservation system.
• Review manufacturing hygiene practices.
• Test the raw materials for purity.
• Analyze the product for microbial contamination.
• Evaluate the stability of the full formulation under different conditions (e.g., accelerated stability testing).

Microbial contamination is the most likely culprit and should be investigated first.