Let's Dive Into Polyquaternium 7 & 10 (not literally)

Links to research websites:
Names it goes by: https://www.cosmeticsinfo.org/ingredients/polyquaternium-7/
https://www.cosmeticsinfo.org/ingredients/polyquaternium-10/
Purpose: https://www.cosmeticsinfo.org/ingredients/polyquaternium-7/
https://www.cosmeticsinfo.org/ingredients/polyquaternium-10/
EWG: https://www.ewg.org/skindeep/ingredients/705124-POLYQUATERNIUM7/
Manufacturing: https://cosmetics.specialchem.com/inci-ingredients/polyquaternium-7
Use: https://cosmetics.specialchem.com/inci-ingredients/polyquaternium-7
https://cosmetics.specialchem.com/inci-ingredients/polyquaternium-10
Concerns: https://pubchem.ncbi.nlm.nih.gov/compound/acrylamide
https://www.cosmeticsinfo.org/ingredients/polyquaternium-7/
https://www.cosmeticsinfo.org/ingredients/polyquaternium-10/
https://pubmed.ncbi.nlm.nih.gov/16154914/
https://www.safecosmetics.org/chemicals/quaternium-15/
https://www.annmariegianni.com/ingredient-watch-list-quats-the-preservatives-that-may-release-formaldehyde-and-exacerbate-asthma/
Alternative ingredients: https://www.annmariegianni.com/ingredient-watch-list-quats-the-preservatives-that-may-release-formaldehyde-and-exacerbate-asthma/