Preserving Boiled Guava Leaf Water for Hair Treatment
คำถาม
I have a hair loss problem and was advised to boil guava leaves and use the water for hair treatment. However, the boiled water spoils quickly.
Could you recommend a preservative (safe for users) that can extend the shelf life of the boiled guava leaf water? What quantity should be used per 1 liter of boiled guava leaf water? Are there any other methods to help extend its shelf life?
Thank you.
คำตอบ
Preserving Boiled Guava Leaf Water for Hair Treatment
Boiled guava leaf water is a traditional remedy for hair loss, but as you've found, water-based solutions without preservatives can spoil quickly due to microbial growth. To extend the shelf life and ensure safety, adding a suitable preservative is necessary.
Here are some safe and effective preservatives you can consider adding to your boiled guava leaf water:
Mild Preserved™ COS: This is a broad-spectrum preservative that is water-soluble and odorless. It works well in a wide pH range (2-8). Add it after the boiled water has cooled down to below 45°C.
- Usage Rate: 0.75% - 1.5%. For 1 liter (approx. 1000g) of water, use 7.5g to 15g.
Global Guard™ 221: A natural, water-soluble preservative approved for global use. It is effective at low concentrations and works in a pH range of 2-7. Add it when the water temperature is below 45°C.
- Usage Rate: 0.5% - 1.1%. For 1 liter (approx. 1000g) of water, use 5g to 11g.
NaturePreserve™ LB2: Another natural origin, water-soluble liquid preservative. It is effective against bacteria and fungi, particularly at lower pH values (2.0-6.5). Avoid adding it at temperatures above 50°C.
- Usage Rate: 0.5% - 1.0%. For 1 liter (approx. 1000g) of water, use 5g to 10g.
Important Considerations:
- Always add the preservative after the boiled guava leaf water has cooled down to the recommended temperature for the specific preservative (usually below 45-60°C). High heat can degrade some preservatives.
- The exact amount within the recommended range may depend on factors like the cleanliness of the preparation process and how the product is stored and used. Starting with the middle to higher end of the range is often recommended for home use.
- While these preservatives help, storing the preserved water in a clean, airtight container in the refrigerator will further extend its shelf life.
- Making smaller batches that can be used within a shorter period is also a good practice.
Adding a preservative will help prevent microbial contamination and allow you to store the boiled guava leaf water for a longer time, making your hair treatment routine more convenient and safe.
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Global Guard™ 221 (pH 2-7, Natural)