11. TLR2 is spc1 is induced here, allowing a bactericidal sebum to be formed. 12. Oily skin is characterized by increased sebum production, which often leads to acne. 13. Sebum is secreted onto the hair shaft and it prevents the hair from splitting.14. These enzymes are involved in the digestion of sebum and the acquisition of other nutrients. 15. The biochemical composition of meibum is extremely complex and very different from that of sebum . 16. It can proliferate in sebum and cause inflamed pustules ( pimples ) characteristic of acne. 17. MC5R is necessary for normal sebum production. 18. Sebaceous glands secrete the skin lubricant sebum . 19. They're produced by bacteria tirelessly breaking down triglycerides in the sebum coating our skin. 20. The clitoral glans, like the foreskin, must be lubricated by the naturally provided sebum .