Does acne cream not work after used by date

« ...Aloe vera itself contains tons of vitamins and minerals that are really helpful at treating and preventing acne. Aloe vera can also accelerate the healing process of acne scars. Aloe vera is also very good at reducing the redness and swelling caused by acne....
...Prevention and Maintenance of Remission in Inflammatory AcneSome dermatologists put very young patients with comedonal acne on a regimen of a mild topical retinoid to squelch microcomedones and prevent their development into inflammatory lesions.After successful acne treatment, Dr Millikan likes to maintain remission with topical retinoid therapy.In addition to maintaining clear skin, the topical retinoids can also slow photoaging and therefore may be used throughout adulthood....»
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«...By suppressing gonadotropins, reducing ovarian androgen secretion, and increasing sex hormone-binding globulin levels, oral contraceptives decrease serum testosterone concentrations. Oral contraceptives may be used in women older than 15 years who have no known contraindications to this form of therapy. They are often prescribed to prevent pregnancy in patients who are given 13-cis-retinoic acid....»
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