In some cases, this may well be - other companies do not go for it in order to sell themselves. But most likely not, because it is too difficult.
The inconsistencies in exposure are likely related to skin tampering or addiction.
Of course, this cannot be.
First, it is not profitable for companies to produce a separate product for probes - this means that a separate production line (probes) must be allocated for each company's product, which will then be distributed free of charge.
Secondly, all products of the companies are produced according to their own regulations (in which the composition, proportions of ingredients and other characteristics are fixed). If a probe were different from a full-size product, it would no longer be considered a probe, but would become a stand-alone product.