But I’ve been asking myself what happens if you accidentally get pheromones in a wound for example when you shave your chest and cut yourself and later on your spray pheromones on this spot?
Or what would happen if you spray pheromones on your wrists and then by touching yourself also have some on your fingers and later on eat something with your fingers? Could this cause any side effects when you accidentally ingest small amounts of pheromones?
I highly doubt there are any side effects. Pheromones are meant to travel via air and attach to special receptors inside the nose. So, getting pheromones in a wound or ingesting them will have little or no effect. Think of it as trying to get effect from pain relievers by putting them on your skin or sniffing them.
Nope its no different then any other chemical . Get it in a wound and it may hurt like a bitch but thats about it.
Ingesting trace amounts on your skin wont harm you but actually ingesting some by putting in your mouth will just like any other chemical.
Tisha
Actually, this is an excellent question!
But why would you spray an open wound, anyway? A healing wound, scratch or whatever should pose no problem, since they seal up really quickly.
Pheromones are produced naturally in the body. Some of them are converted to pheromonal form by bacteria on the skin. Some of them are produced internally and then excreted to the surface.
But some of the pheromones are androgens and estrogens and shouldn’t be injested on purpose in any large quantity. In fact, to do so would be a violation of the law.
The small amount that may be on your fingers after application, I doubt would be enough to worry about if you ate something like a sandwich afterwards. Most would be broken down by the stomach and liver and excreted. And androgen pheromones are active as pheromones at much lower concentration than that which you produce internally that acts locally.
Diane
Slight correction on the pain relievers and medications in general. 
Certain pain relievers do have topical effects aspirin is a good example hence aspercream and ectra.(hence warnings not to use these products with the same medication or similar medications orally) It depends on the type and location of pain and the type of medicine you’re taking for pain.
Other good examples are diphenhydramine aka benadryl,caffeine and lsd. We actually do absorb a lot of things through our skin.However, without a facilitator absorption is minimal.
Administration: Administration and Kinetics of Drugs: Merck Manual Home Edition
Which Medications Can Be Delivered in Patch Form?
The question isn’t stupid and I will agree with Diane that you’re likely at no risk of harm unless you ingest pheros on purpose.Yes, absorption would be higher at a wound site.
Skin absorption is generally mild and as pheromones are designed to go into the air I would think that their absorption would be minimal.
If you’re still concerned about ingestion wash your hands before eating or use wet wipes to clean them.
Some of the guys have had girls lick them while they were wearing pheros to no ill effect.
Oh, I also wanted to add that those pheromones that are androgens are weak androgens and the amount you could possibly ingest from your hands is way too low to effect you adversely.
Diane
If they are just synthetic versions of chemicals our bodies create, I can’t imagine they would do much harm entering into your bloodstream or digestive tract.
I’d honestly be more concerned about some other nasty chemicals like cigarette smoke entering my body 
I wonder how a more inner layer of the epidermis would react to pheromone absorption. Would it be the same as the top layer of the skin or would it be slightly different as top surface of the skin may be superior in retrospect to holding molecules such as these.