Questions about Thyme Care Preservative: Usage, Shelf Life, Irritation, and Solubility
Question
I have questions regarding the use of Thyme Care preservative:
1. Can I use `Thyme Care` at 0.8% in all types of cosmetics, including creams packaged in jars? Will it provide preservation for up to 2 years?
2. How does the potential for skin irritation from `Thyme Care` compare to other preservatives like `Phenoxyethanol` or `Mild Preserve Eco`?
3. Can `Thyme Care` be used in products for the eye area or lips?
4. If I need to incorporate `Thyme Care` into water, what percentage of `FloraSolve Clear` should I use?
Answer
Based on the staff's reply:
Regarding using Thyme Care at 0.8% in all cosmetic types, including jar creams, and its preservation duration:
The staff cannot provide a definitive answer because the effectiveness of the preservative heavily depends on the specific formula composition of the product. Factors like the presence of easily degradable natural extracts or ingredients that can feed microbes (e.g., polysaccharides like Xanthan Gum) play a significant role. For an accurate assessment, they recommend performing a challenge test through the Department of Medical Sciences, which takes approximately 4 weeks and costs around 1000-2000 baht.Regarding skin irritation compared to other preservatives:
Thyme Care does not cause skin irritation, similar to Mild Preserve Eco. Phenoxyethanol, however, can cause skin irritation.Regarding use in eye or lip products:
Yes, Thyme Care can be used in products for the eye area or lips.Regarding incorporating into water using FloraSolve Clear:
Please try using FloraSolve Clear at 2-3%.
Related Products Mentioned
Phenoxyethanol (Extra Pure)
Mild Preserved Eco™ (Preservative-Free)
