SALICYLIC ACID is a natural plant hormone, its used by them as the immune defence system. (SAR)
Humans use it on cosmetics/medication for burning off acne and also we eat it as an added preservative, its naturally higher in over-ripe fruit & veg too. Used at different %proof decides either to burn or preserve.
It causes plants to inflame if attacked by infection or insect, causing a thickening of skin in hormonal response to danger.
This feature is exploited in Tobacco plantations, they add infection to make SA cause plants to thicken then pick these bigger and heavier tobacco plants (up to triple crop size).
Human hormones like testosterone, estrogens & growth HGH are steroids compatible and similar to plant steroids in many ways (often exploited at the gym).
Lipids and fats are used to make myelin (cerebroside). Fats add and store fuel/nutrients since conception for quick access on demand.
Myelin protects nerves and makes our brain tissue. Fats and lipids are classed in the same biochemical category.
FDA or whoever approves SA, it as safe in moderation. Since then we use it to everything which adds to our absorption.
Its used naturally in fruit and veg, its supplemented in preservatives and cosmetics/medicines/treatments.
although designed to inflame and thicken plants skin, aspirin is extracted from it.
overdose causes MS type symptoms.
References:
Salicylic Acid (SA) - Salicylic acid - Wikipedia
SA plant protection - Salicylic Acid, a multifaceted hormone to combat disease - PubMed
Myelin - Characteristic Composition of Myelin - Basic Neurochemistry - NCBI Bookshelf
Overdose/Poisoning - Salicylate Poisoning. Causes of salicylate poisoning; aspirin info | Patient
and http://fedup.com.au/factsheets/additive-and-natural-chemical-factsheets/salicylates
and Some Acne Products Can Trigger Severe Allergic Reactions: FDA – WebMD
Aspirin - http://www.drugs.com/aspirin.html
Human hormones - http://www.ehow.com/about_6319403_chemical-structure-estrogen.html
SAR - Systemic Acquired Resistance - PMC
please let me know if i’m wrong with anything stated above… its some stuff I’ve chewed over for the past 10 years so pour a drink and chow down and digest it all.