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Recipe for 20% Vitamin C Skin Serum

pigmentation

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#1 Fafner55

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Posted 13 January 2019 - 07:19 PM


Recipe for a 20% Vitamin C Skin Serum
Expensive vitamin C serums are easily and inexpensively reproduced. 
 
Vitamin C serums are effective in increasing collagen to reduce wrinkles and inhibiting melanin to fade pigmented skin.
 
This recipe fits into a 4 oz bottle and dropper. 
  • 90 g distilled water
  • 18 g sodium ascorbate
  • 7 g hyaluronic acid, liquid (increases moisture retention and reduces the appearance of wrinkles)
  • 4 g propylene glycol (makes the serum less watery and helps with moisture retention)
  • 20 drops glycolic acid (35% solution) to adjust the pH from neutral down to about 6.0. A pH < 5.5 leads to discoloration (yellow-browning) of the sodium ascorbate. A pH of 5.5 is common in consumer facial serums and is close to the natural pH of skin. Test the pH to verify. 

My girl friend, a critical judge of skin care products, is pleased with this serum and results. She uses it liberally on her hands, arms, face and neck.


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