Is this for you at all
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Why sunscreen is the hard one
The SPF on the label comes from testing on human subjects to a prescribed method, and so does the broad spectrum designation. That is a laboratory service with a real cost and a lead time, and it has to be repeated when the formulation changes. It is the single biggest barrier on this shelf.
And the formulation is not forgiving
Active ingredients, their concentrations and the finished product’s performance are tightly connected, so adjusting a sunscreen for feel or cost can move the SPF. You cannot tune it the way you would a lotion and then declare the old number.
Repellent is a middle case
A registered product is a serious regulatory undertaking. A minimum risk product using exempt ingredients is genuinely accessible, with real constraints on what it may claim, and that is the route most small makers take.
The cosmetic end is straightforward
Aloe gels, after sun lotions and tanning oils are cosmetics, and the requirements are those of any cosmetic. For somebody who wants to be on this shelf without entering a drug or pesticide regime, that is the door.
Read the claim rules before formulating
Because the things you naturally want to say about a product for sun exposure are frequently the things that move it into another category. That is the whole difficulty and it is a writing problem more than a chemistry one.
What this property covers
Which regime each product is in, the specific rules that catch people, and the container decisions. It does not formulate and it does not clear a label.
Private label is a real route to the hard end
Selling somebody else’s tested sunscreen or registered repellent under your own brand gets you onto this shelf without the testing, and it makes you responsible for the label. That trade is worth understanding before dismissing the category as closed.