Finalmentecumpli

I've suffered from fine/thinning hair since my children were born and have taken hair, skin, and nail supplements for many years. WLS did NOT help the situation. My Hair loss started around 3 months and didn't stop for at least another 3 months. I recommend you look up and read about telogen effluvium.
My advice:
As others have said above, the supplements are likely worthless at this point. If you're already shedding, starting supplements after the fact won't make a big difference. *I took them long before surgery and still got it. The hair you're currently losing was in production at the time of your surgery (see telogen effluvium hair cycle). Meet your nutritional goals set by your doctor. At this point, it won't stop it, but it might help it slow down and help you recover faster/grow your hair back/etc. Consider healthy scalp treatments like massage, oil treatments (castor oil and others) Get plenty of rest and manage stress (stress only makes it worse) Take it from someone who has spent $100s (if not $1000s) of dollars on "supplements," "natural cures," special shampoos, and all sorts of snake oil on hair loss. The best thing you can do is not stress and get your nutrition in.
Today, my regime looks like this:
I still take a daily Hair, Skin, Nails formula (mine also has a lot of other vitamins/minerals, so I justify it like that) Here's the one I take I introduced a collagen supplement (good for hair and hails) I do not wash my hair daily. I usually wash about every other day and if I can stretch it to a 3rd day without looking like an oily mess, I do. I got a scalp massager Here's the one I purchased on Amazon I sleep on a silk pillowcase (it is recommended to reduce breakage) (besides, they say it's also good for the skin and preventing wrinkles) Before I wash, I do a deep scalp massage with follicle-stimulating oils like castor oil or red pimiento or some similar oil meant to moisturize the scalp and strengthen hair follicles. Every time I wash, I use a different Shampoo (I change between 3 favorites) to prevent any build-up that would weigh my hair down or lead to breakage. I recently started washing my hair with cool/cold Water. I cannot believe the difference! My hair immediately felt fuller and was definitely shinier, stronger! If you can tolerate it, I strongly recommend this one.