Have you even bothered to look up the benefits of amber and what it could do?
Amber is fossilized tree resin which some people believe contains a substance called succinic acid, which is given off as oil when the resin is warmed by the skin. Some people believe this oil acts medicinally to reduce joint pain, anxiety and headaches. To date, neither the ASA nor CAP has seen evidence to support claims for the health benefits of wearing amber necklaces or amber bracelets. Marketers of these products should not make health claims unless they hold robust clinical evidence (rule 12.1).
The Medicines and Healthcare products Regulatory Agency (MHRA) has confirmed that the products are not medical devices and would not be medicinal products because the transdermal effects of any remaining oils in the beads would not have a meaningful pharmacological effect.
Taken from www.asa.org.uk/advice-online/amber-jewellery.html
Do amber teething necklaces work?
Many parents swear by amber teething necklaces, but there is little evidence to suggest that they actually have any positive effect. A recent study found that wearing amber next to the skin does not cause succinic acid to be released into the body. The study also reported that succinic acid is not even an anti-inflammatory.
Are amber teething necklaces dangerous?
They could be, as putting anything around your child’s neck represents a strangulation risk. Also, both beads and clasp can become dislodged, which your baby could then swallow, which is a choking risk. The Royal Society for the Prevention of Accidents advises against placing any cord around your baby's neck at any time.
Taken from www.emmasdiary.co.uk/baby/teeth/teething-necklace
Clinical evidence that they don't work from this Pubmed article from 2019
Conclusions: While amber teething necklaces are genuine Baltic amber, we have found no evidence to suggest that the purported active ingredient succinic acid could be released from the beads into human skin. Additionally, we found no evidence to suggest that succinic acid has anti-inflammatory properties.
pubmed.ncbi.nlm.nih.gov/31277614/