We had some camp soap left over from like 10 years ago. I wanted to know what is camp soap. Well, it's traditional soap made from fatty acid an lye.
Most claim to be Castile soap/ Aleppo soap:
https://en.wikipedia.org/wiki/Aleppo_soap
Only they are liquids so they are not exactly that.
They claim to be natural and biodegradable, not "synthetic." The only problem is that sodium laurel sulfate is also biodegradable*. And the detergents we use today are mostly palm oil, not petroleum based. You reduce the acid end to alcohol and go on to make sulfate.
(*Biodegradability
The ability of a chemical to decompose into simple, nontoxic components under ambient environmental conditions within a short period of time (typically 96 hours) means that it is biodegradable. SLS is readily biodegradable under aerobic and anaerobic conditions and, therefore, does not persist in the environment.8,37,45 The biodegradation of SLS occurs via hydrolytic cleavage of the sulfate ester bond leaving inorganic sulfate and fatty alcohol. These fatty alcohols undergo oxidation to produce fatty acids, which are degraded by β-oxidation and fully mineralized and incorporated into the biomass.45 Thus, the decomposed by-products of SLS are benign to the environment.) from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4651417/
