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Question

Posted on: March 6 2013

Is there a magijet alternative to Andina, which remains stable after preparation?

Answer

Andina is a hydrogen peroxide-containing preparation and hydrogen peroxide is a wenig stable product. There are a few other hydrogen peroxide preparations in the market such as Crystacide, which the manufacturer claims to embed the hydrogen peroxide solution into a kind of inverted micelles. Crystacide is supposedly a W/O cr è me.

I would suggest following CR è me once to test out: Hydrogen peroxide 30% 10g; Tween 80 3.5 G; Phenacetine 20mg; Na2EDTA 500mg; Phosphoszuur 0.3 g; Glycerin 30g; Cetostearyl alcohol 10g; Reage. Paraffin wax 5g; Vaseline 15g and water up to 100g.

of course make the CR è me beforehand and after completely cooling add hydrogen peroxide. Packing in lacquered Al tube. Store in the refrigerator. Shelf Life 1 month (to start). If necessary, the concentration of hydrogen peroxide can be increased.

the stability can be followed very easily by a titration according to the Pharmacopoeia: dilute 10g with water up to 100ml. Add to 10ml 20ml diluted sulphuric acid and tritreer with KMn04 until a pink color appears; 1ml of the tritreerliquid corresponds to the With 1.7 mg H2O2

using a few provisions: 14 days, 30 days, 60 days etc, the expiry date can be determined.

Should this CR è not satisfy me then it may be considered to look for a W/O formulation.