Preservatives for Sensitive Skin and Nano Silver Application

Subject: Preservatives for Sensitive Skin

Based on the discussion, finding a preservative that absolutely guarantees no reaction for extremely sensitive skin is challenging as individual responses vary. However, considering the options discussed from myskinrecipes.com:

• Global Guard (Product ID 879) was mentioned as potentially having a very low allergy rate, possibly lower than other traditional preservatives. The main drawback is that it loses effectiveness at pH levels close to 7 or higher.
• Nano Silver Pure (Product ID 857) is not a traditional preservative but has strong antimicrobial properties and can function as one in suitable formulas. It was also mentioned to potentially help with skin allergies. However, it is relatively expensive, and some individuals can be allergic to silver.
• Other preservatives like Phenoxyethanol (Product ID 155) and Ethylhexylglycerin (Product ID 642) were discussed, but they were noted to potentially cause irritation or warming sensations in some individuals, even if not strictly allergies. Parabens (like BroadPreserve, ID 329) were mentioned as having low allergy rates historically but are now less commonly used due to other concerns.

Considering the goal of minimizing allergic reactions, Global Guard might be a suitable option if your formulation's pH is compatible. Nano Silver Pure is another alternative to consider, especially if you also seek its other skin benefits, keeping in mind the cost and potential for silver allergy.

It is always recommended to perform a patch test with any new ingredient or product on a small area of skin before widespread use, especially for very sensitive skin.