letsalcido

On 4/26/2020 at 5:12 AM, Nguyen Thanh Ha said:

Hi everyone.
I've tried to make this solution with these chemicals. The two problems I've got are the dissolution of vitamin E (first, it dissolves in alcohol but when mixing in water phase, it gets separated again) and the adhesive of product solution when tested on the skin, it's quite uncomfortable until the skin gets dry.

Please give me some instructions or method (same as the content shown in the paragraph “method” in the image below) for preparing the sanitizing solution (for hand wipe).

Active Ingredient: Benzalkonium Chloride: 0,13%;

Inactive Ingredients:

• Aqua;
• Isopropyl Alcohol;
• Glycerine;
• Tocopherols;
• Decyl Glucocide;
• Fragrance;
• Methyl paraben;
• Propyl Paraben;
• Phenoxy Ethannol.

Many thanks!

Get rid of Vit E. That is absolutely unnecessary as part of a sanitizer. It’s added in tiny amounts in commercial products for marketing purposes, but it really has no effect in a sanitizer.

If you really want to keep it:

Phase A

Water, Glycerine, Isopropyl Alcohol

Phase B

Decyl Glucoside, Tocopherols (mix very very well)

Phase C

Preservatives and Fragrance

NOTE: For alcohol to be effective you need to use over 60% by volume in your formulation. At this level you don’t need other preservatives.

Procedure: mix phase B into phase A until combined and homogenous. Then add preservatives and fragrance one by one and stir until combined before adding the next.

On 4/30/2020 at 10:31 AM, Aconitin said:

Here's my theory: The components of a perfume that smell good might be mainly lipophilic (I think essential oil are used often, and those are lipophilic). If they are sitting on your skin, they are directly exposed to influences like warmth and oxygen, causing them to break down or evaporate quite fast. If they are applied onto a lipophilic base, they can diffuse into this base and probably also partially into the skins top layer (as this is lipophilic to)?

Yup, this is a sound hypothesis