I have no experience of these 2 pharmacies as I'm in the UK. I think the pricing depends on how much LDN the pharmacy is turning over. The more they turn over the lower the cost.
For example in the UK I was quoted as a cost to our health service 300 per month from a pharmacist who I think would only compound it for me. But getting it from Dickson's Pharmacy where they dispense all over the world the cost is 15 per month for the liquid. So a huge difference in price dependant on their turnover of LDN.
It could also be a difference in LDN formulation. The liquid is cheaper than the capsules - capsules at Dickson's are 27 per month. They may also compound at different doses and therefore their prices could be different.
So worth contacting them and asking their pricing structure for the liquid & capsules.
One of the first pharmacies to compound LDN was Irmat Pharmacy in Manhattan. Their recent price for a one-month's supply of 4.5mg LDN (30 capsules) was $38. Irmat does monthly quality control testing on its LDN, accepts prescriptions from any licensed physician, checks for insurance coverage, and includes shipment anywhere in the US or to other countries. In contrast, Gideons Drugs charges only $15 for a one months supply of 4.5mg LDN but it does not accept insurance and it will charge for shipment