Preservatives - how do they work and what are they for?
What are preservatives and why are they needed in a finished formulation? What are preservatives and how do they work in a cosmetic? What are preservatives is a question that often comes up when working with an aqueous or aqueous-oil product. Micro-organisms need water and nutrients to grow, and many emulsions, gels or tonics fulfil these conditions. Preservatives inhibit [...]
Read moreWhat pH should the cosmetic have?
What is pH and what does pH mean - importance in cosmetics. What is pH? - is a question that often arises in the context of skincare. The pH scale indicates the degree of acidity or alkalinity of a solution and ranges from 0 to 14. Values below 7 are acidic pH, a value of 7 indicates neutral pH, [...]
Read more
English 
Polish