"Human sebum" refers to the natural oil that our skin produces.
Full definition
For example as we age, natural levels of palmatoleic acid found
in human sebum decline and these levels can be replenished with the palmatoleic acid in macadamia nuts for example.
The situation is that
human sebum contains squalene in high concentrations, but when it oxidises and becomes squalene peroxide because of free radical attack, it's a nightmare for acne.
Here is the composition of
healthy human sebum: 12 % squalene, 41 % triglycerides, 26 % wax, and 16 % free fatty acids.
Unusually, squalene was specifically examined and it also fell; this is the ingredient of
human sebum which causes acne by oxidising when attacked by free radicals.
It naturally
mirrors human sebum and is an amazing softening and moisturizing agent, helping to improve dryness.
I use olive oil in a pinch, coconut has a lipid profile much closer to
human sebum.
Due to its similarity to
the human sebum, jojoba oil, a naturally derived liquid wax containing several important vitamins, minerals and fatty acid...
The human sebum of the young contains Omega - 7.
Jojoba is naturally similar to
human sebum.