Bakuchiol: what to specify when buying the raw material
Bakuchiol sells as a gentle retinol alternative. A buyer, though, is not buying the claim but a batch of raw material, and there the purity figure and the assay method decide everything.
Bakuchiol has entered the description of almost every clean-beauty line as a gentle retinol alternative. A buyer, however, purchases a batch of raw material rather than a phrase from a pack. From there the purity figure, the method used to measure it and the batch paperwork decide everything.
What it actually is
Bakuchiol is obtained from the seeds of Psoralea corylifolia, the plant known as babchi. Chemically it is a meroterpene phenol, and the INCI name matches the common one: Bakuchiol. It is not a retinoid, so "retinol alternative" describes an expected marketing effect rather than a chemical relationship.
The figure 99% next to the name is a standardisation level: the share of bakuchiol itself in the material. It is not a quality mark or a certificate but a value that has to be confirmed by a batch analysis report.
Why the purity figure matters more than the word
The word bakuchiol in a specification says nothing about concentration. The same name covers both a purified active and a diluted oil solution carrying a few per cent of it. The dosing differs several times over, and so does the cost of the formula.
A specification therefore reads not "bakuchiol" but "bakuchiol, minimum 99%, method such and such". Without the method the figure stays a word: two different methods run on one batch return different results.
What to request from the supplier
A certificate of analysis for the actual batch, not a typical sample. It has to carry the active content, the method of measurement and the batch number.
Ask separately for residual solvents, heavy metals, pesticides and microbiology. For plant material this is not a formality: pesticides arrive with the field and solvents with the extraction process.
Third, stability data. Companies name the photostability of bakuchiol as its advantage over retinol, and if that argument is going into your product description, a document has to sit under it rather than a line from a brochure.
What a lawyer decides, not a chemist
Wording on a pack is governed by the country of sale, not by the supplier's brochure. Comparisons with retinol, wrinkle-smoothing wording and efficacy promises are acceptable in some countries and require test evidence in others.
So the list of claims is agreed before production starts, not after the packaging is printed. The supplier answers for the material and its documents; what is written on the box is your responsibility.