REACH is an EU chemical regulation and it is a legal requirement. If we don’t meet REACH compliance then we are breaking the law.
SVHC “Substances of Very High Concern”
is a chemical substance that can be harmful to human health and the environment. SVHC is one in REACH regulation, it’s have list of substance must be control up to prohibit in all product. The list of substance we can check by Candidate list (is a list of SVHC that have been formally recognised by REACH for potential authorization).
If the product have ingredient of chemical in candidate SVHC list
If the level of SVHC is at a higher level than 0.1% w/w then you have a duty to supply the recipient with sufficient information to allow safe use of that article.