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MELATONIN
- A vertebrate hormone of the pineal gland that produces lightening of the skin by causing concentration of melanin in pigment-containing cells.
- Usage: Medical report on antiaging products.
Source: Merriam-Webster's Collegiate Dictionary, Tenth Edition.
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METHUSELAH
- An ancestor of Noah held to have lived 969 years.
- Usage: Medical report on antiaging products.
Source: Merriam-Webster's Collegiate Dictionary, Tenth Edition.
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