Adv. Aging Skin

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Across
  1. 1. hormone that stimulates fibroblast cells to produce collagen
  2. 5. external
  3. 6. burning rays
  4. 7. occurs every 28 days in young adults
  5. 8. Matrix Metalloproteases
Down
  1. 2. aging process involving glucose
  2. 3. produces collagen and elastin
  3. 4. an enzyme that keeps cells youthful