Hi Muttley47
I have the exact same experience, I recoded the batch number and sent a complaint to Besins, they have responded by they want my endocrinologist to fill in the form. However, she isn't interested and was a bit blasé about it all, she just wants to change product. My blood test show that I am absorbing estrogen with the "bad bottle" but the levels were down about 25%, however if I increased my dose I could get my E2 levels up but I found that it still wasn't as effect. My doctor thinks I am having an allergic reaction to some of the ingredients in the gel. It is currently being supplied to the UK and Ireland from multiple sources whereas it was previously a single source supply. I am assuming that there is a slight difference in the other ingredients in the bottle coming from the different manufacturing plants. I would think this is entirely possible as the regulations and controls are probably mainly on the active ingredient rather than the carrier gel.
I'm not sure what to do myself as a lot of the patches are not effective for me. Evorel used to be excellent until they sold it to Theramex and now it doesn't work the same, I actually find it pretty useless. The old Evorel used to irritate my skin a lot but I found it very effective, with the new patch my skin would look like I never put on a patch. The new one looks the same, and is in the same package but it is basically a generic patch that is rebranded. Nothing wrong with generic per se, it just doesn't suit me; it is not the same Evorel. I found Estradot ok, but I need to take a very high dose in order to get the appropriate E2 levels, I have the same issue with other patches. My biggest issue with Estradot was the small patches didn't stay on if I was exercising a lot.
As I said I sent in a complaint which they did respond to. I am going to fill it in instead of my doctor as I have a good knowledge of my hormone levels etc anyway. I think everybody experiencing this issue should make a complaint and keep a record of which batch is good and which is bad so that it can be documented. If enough people do it, maybe it might get some action.