I’ve been a BFS customer for two years now, and have been using several of their supplements. NMN and Berberine are my two most used. I’m continually replenishing my stock. I highly recommend all of BFS products

2025-10-03

I've taken many supplements from other places abs by far any product I've gotten from black forest I've seen positive results. I've been diabetic for 25 years and with a few products from them I've gotten better numbers and results. Working nights and age struggling with energy some other supplements from here has helped as well. I look forward to purchasing more from them in the future

2025-09-28

5x Berberine upset my stomach so I quit taking it. Went back to my regular Berberine and am doing well on it. For me, 5x stronger isn't better.

2025-09-19

I tried my first order of the Berberine supplement and liked it very much; no side effects, curbed my appetite, and I was very pleased so I signed up for a subscription to receive it monthly. In the second bottle I received, the pills looked slightly different; different color and slightly different size. I took them and they immediately bothered my stomach. I tried taking them for 2 weeks and it never got better so I stopped. I reached out numerous times to customer service voicing my concern that either the bottle was mislabeled or the formula changed, and no one ever gave me a final conclusion, they merely said they were having quality control look into it. I followed up and never received a response. I am disappointed and do not recommend this product.

2025-09-08

Been over a month, and I never received it. Emailed a few times, got told it’s on the way here is the tracking number. Still says it is pending.

2025-08-19

I like what the 5X Berberine promises but it causes heart palpitations for me.

2025-08-14

So far I have great faith in your products ! Keep it up !

2025-08-11

I'd have to say this is some of the best stuff. I've seen out there for a while that actually really works good, very impressed. Anybody that gets this, I was gonna be glad that they got it like I said before. It's one of the best out there

2025-06-22

I have a lot of energy taking these I have been looking very youthful I am 40 I got asked if I was 21 when buying nicotine

2025-05-01

This Berberine X5 has been a life saver. It has really suppressed my appetite and has helped lower my a1c along with my other diabetes medication.

2025-03-09

Doesn't seem to be as effective as similar products.

2025-02-20

My wife thought they were working too well and so she took my second bottle for herself. I will never know what the second bottle would have done. Lol She is a diabetic and she thought they would help her so we shall see.

2025-02-17

I have been using 5x Berberine for 6 weeks now and it has controlled my appetite tremendously. And my blood sugar with the cinnamon added has lowered by A!C by 2 points.I will continue use this product.

2025-02-03

5x Berberine works ! Super simple super easy to use !

2025-02-03

It really seems to help keep my sugar balanced. I have diabetes and this is a great help to me.

2025-02-02

Well I didn't open and sent back and yet to receive a refund!

2025-01-31

I have diabetes type 2 and I start to use 5xBerberine 5 months ago, and with exercise good diet and the berberine i can keep my blood sugar undercontrol without the need of anything else

2025-01-19

My rating is for fast shipping, I won't know how to rate this until I have my bloodwork done at the end of the month to see if it really works.

2025-01-16

These really seem to keep my sugar levels in check. I can tell because my eyes are no longer puffy after my morning coffee. And I don't have sugar crashes anymore

2025-01-03

Unlike other companies' berberine, BF berberine has helped suppress my appetite & sweet tooth.

2025-01-02