Biochemistry of Shaving Bumps Formation

I have summarized below [in the attached schematic] the biochemical processes involved in Shaving Bumps formation as per the BREEJ New Hypothesis that Shaving Bumps are Primarily Caused by the Trauma from Shaving

http://ScienceofShaving.com/

SUMMARY

Shaving Bumps are Primarily Caused by the Trauma from Shaving

Ingrown hairs are Caused by Shaving Bumps

Ingrown hairs [more appropriately referred to as entrapped hairs] result when existing shaving bumps block the opening of the hair follicles on the skin forcing the normally growing hairs to grow into the existing bumps [hence the name ‘ingrown hairs’].

It is practically impossible [based on the structure of the Stratum Corneum] for the hair outside the skin [or hair cut at an angle] to curl and grow back into the skin contrary to what is claimed and published by many!

Blacks get more severe bumps due to higher content of MELANIN [the skin pigment]

Melanogenesis induced by irritated Keratinocytes produce additional inflammatory mediators – Cytokines and Reactive Oxygen Species [ROS]

Melanocytes also produce additional inflammatory Cytokines

It is best to shave with a multi-blade razor [causes minimal irritation] and coarse, curly hairs [manifested in all ethnic/racial groups] play no role in shaving bumps formation