Rose Hip Oil and pH in Formulations

Regarding the acid stability of Rose Hip Oil and the appropriate pH for formulations, the information provided earlier is correct.

Natural oils, including Rose Hip Oil, are generally stable in cosmetic formulations with a pH range of 4-7. Within this range, you typically don't need to worry about the oil's stability being compromised by the pH of the water phase in an emulsion.

Rose Hip Oil itself is an oil and does not have a pH value like water-based ingredients. However, when used in an emulsion (a mix of oil and water), the pH of the water phase is important for the overall stability and effectiveness of the product, as well as the stability of pH-sensitive ingredients within that phase.

Both Rose Hip Oil (Virgin, Fresh) and Rose Hip Oil (Extra Virgin) are rich in unsaturated fatty acids. While stable in oil form, these fatty acids can be susceptible to degradation over time, especially when exposed to heat, light, or extreme pH conditions. Maintaining a pH within the recommended range of 4-7 helps ensure the longevity and efficacy of the overall formulation.

Therefore, keeping your formulation's pH between 4 and 7 is a good practice when incorporating Rose Hip Oil.