Is it possible to summarise what we’ve learned in this thread as follows?:
1. No glue or tape is risk free;
2. Water-based glue (Ghostbond) is safest;
3. Tapes are less safe due to to the fact that all contain acrylic and manufacturers aren’t required to produce a medical data sheet
In my opinion, acrylic liquid adhesive present more risks than acrylic tape.... if only for the simple fact they contain more chemical ingredients.
Also, they are not "Medical safety sheets" they're material safety data. They're required as they speak to priper storage, flammability, enviromental toxicity, KNOWN human toxicity, and how to handle the chemical if exposed to it...via eyes, lungs, skin etc...
They are by no means documentation that they've been tested or cleared. They simply report what the manufacturer believes to be true of each individual ingredient.
Adhesives are treated like cosmetics, and are not even regulated by the FDA.
I use them as example since they are the only information regarding specific product ingredients available.
By no means are they "study reports, or proof" that they are safe when used as intended.
I always refer to the statement on all adhesive msds.... If the product comes in contact with your skin immediately remove clothing and wash off product.
That's an awfully strange statement to put on something that's intended to be applied to the scalp for weeks on end.