[onesexybitch]

I wanted to make a strong bleaching cream but then I read on how to compound the solution and whew too much chemistry for me lol

What is the percentage of hydroquinone in the solution? I would figure it out but I'd need to know how many ounces you added to the bottle, not inches.

I'm interested to see what your results are. The only thing I'd be worried about is how to keep the solution stable. Hydroquinone is not stable in any water base without presence of antioxidants, so I suggest you add some l-absorbic acid to the mix. I think the batch you made is too big. It'll oxidize before you're halfway through because as I stated before, the solution is not stable in a water base. The vitamin C will also oxidize and you'll need a ton. For that not to happen the pH of the solution would have to be around 3.5 for the l-absorbic acid(cosmetic grade) to remain active. You could try lactic acid to adjust the pH but I'm not sure how that would react topically or with the hydroquinone. I guess you could use fruit based antioxidants but I don't know of any.

I just revisited some sites on making your own hydroquinone cream and it's too complicated. Hydroquinone is stable in Propylene glycol, it doesn't oxidize, even after long periods of time. These are for a 100ml solution:

• HQ 10ml + Propylene Glycol 90ml = 10% HQ Serum
• HQ 15ml + Propylene Glycol 85ml = 15% HQ Serum

Propylene is cheap. You can get like a gallon for 20-some bucks. Here are the rest of the recipes, if you decide you want a stronger solution or a bigger batch:

1. 100ml
• HQ 10ml + PG 90ml = 10% HQ Serum
• HQ 15ml + PG 85ml = 15% HQ Serum
• HQ 20ml + PG 80ml = 20% HQ Serum

2. 150ml
• HQ 15ml + PG 135ml = 10% HQ Serum
• HQ 22.5ml + PG 127.5ml = 15% HQ Serum
• HQ 30ml + PG 120ml = 20% HQ Serum

3. 200ml
• HQ 20ml + PG 180ml = 10% HQ Serum
• HQ 30ml + PG 170ml = 15% HQ Serum
• HQ 40ml + PG 160ml = 20% HQ Serum

If you need a source, just PM me.

------------------------------------------------------
Thanks for an intelligent responce.

I hope and pray that i find people such as your self, that i can dialog with.- its so refreshing!
I live in the present, surronded by conditioned minds and I suffer a horrible loneleness.

Bleaching "Hydrogen peroxide" will lighten the skin by killing the cell.
the human skin cell can only divide 50 times before it reaches its hayflick limit and will no longer divide, and with every replication, its genetic expression changes ( due to the shortening of its telomere ) Its what we call ageing.
Trust me , you don;t want that!

I have a reasonable understanding of chemistry / biochemistry four college classes 4.0 grade point average.

The hydroquinone molecule that enters the cell must be C6H4(OH)2!
That is , i think , the only thing that interferes with the transcription of DNA to RNA and the creation of the protein molecule " melanin"
anything done to stabilize hydroquinone and it would not be C6H4(OH)2.
It oxidizes to become benzoquinone. C6H4O2
The percentage of hydroquinone is always a " saturated solution" because there is always some benzoquinone laying on the bottom.- which assures up that its % of hydroquinone is akways the same.
If a more concentrated solution is needed then heating the water will create a super saturated solution. even when it cools.
Oils and greeses create a barrier to the migration of ionic water compounds - oil and water don't mix.
the hydroquinone as an ionic compound must migrate to the cell.

Our cells our composed of 5% saline - NaCl and if the hydroquinone solution has a salt concentration of less the 5% saline then it will pass into the cell thru Osmosis
everything in the human body is suspended in water, fats can not move within the human body except by the use of Cholesterol's.
-----------------------------------------------------------------

Almost everything written is to sell a product, never do they tell you how it works-
Its like religion, you must have faith that it will work. and if you have the faith of a mustard seed you faith could move mountains.