This section is from the "Henley's Twentieth Century Formulas Recipes Processes" encyclopedia, by Norman W. Henley and others.
Poppy oil........... 1 part
Lead acetate........ 2 parts
Tincture benzoin.... 1 part Tincture quillaia. ... 5 parts Spirit nitrous ether... 1 part
Rose water......... 95 parts
Saponify the oil with the lead acetate; add the rose water, and follow with the tinctures.
Chloral hydrate..... 2 drachms
Carbolic acid....... 1 drachm
Tincture iodine...... 60 drops
Glycerine........... 1 ounce
Mix and dissolve. Apply with a camel's-hair pencil at night.
Distilled vinegar.. . 660 parts Lemons, cut in
small pieces..... 135 parts
Alcohol, 85 per cent........... 88 parts
Lavender oil...... 23 parts
Water............ 88 parts
Citron oil......... 6 parts
This mixture is allowed to stand for 3 or 4 days in the sun and filtered. Coat, by means of a sponge before retiring, the places of the skin where the freckles are and allow to dry.
Modern dermatological methods of treating freckles and liver spots are based partly on remedies that cause desquamation and those that depigmentate (or destroy or neutralize pigmentation). Both methods may be distinguished in respect to their effects and mode of using into the following: The active ingredients of the desquamative pastes are reductives which promote the formation of epithelium and hence expedite desquamation.
There are many such methods, and especially to be mentioned is that of Unna, who uses resorcin for the purpose. Lassar makes use of a paste of napnthol and sulphur.
 
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