Customer Reviews

Overall Rating

Rated 4.8 out of 5
4.8 out of 5 stars (based on 84 reviews)
Very good7%


Simple, science based

Rated 5 out of 5
May 8, 2023

Easy to take and effective for reducing the side effects without interfering with treatment effectiveness. I recommend to many of my oncology patients.

Dr. Wayne Jonas, M.D, USA

Real Science!!!

Rated 5 out of 5
April 8, 2023

Protectival is an amazing product that I have been taking for years. Whenever I reorder it, I receive it quickly.

I can’t say enough about it. There is real science behind this product – and you can access it on their website.

William, USA

Protectival an ideal formulation for use for immune system support

Rated 5 out of 5
March 24, 2023

Among the many commercial products targeting immune function that we’ve evaluated, Protectival is clearly the most effective in terms of potency and selectivity.

The degree of quality control I have observed with Protectival is rarely seen with commercial products of this type, combined with its excellent safety profile in my opinion makes Protectival an ideal formulation for use for immune system support. I highly recommend this product without reservation.

Dr. Steven J Melnick, Ph.D., M.D, USA

Life Saver

Rated 5 out of 5
March 15, 2023

The service is outstanding

I am taking this product for over a year,

After 9 months of taking that product my blood was normal and still

I put my husband of 89 and he feels now young as 65, he was going to bed tired at 7:30pm gets up at 9:00 am

After a month taking it 9:00 pm up at 6:30 ready to conquer the world

Thank you Lifebiotic you are a lifesaver

Gene, Germany

Quick service

Rated 5 out of 5
February 8, 2023

I was impressed at how quickly and efficiently my order was processed, mailed and delivered.

David, Canada


To me, Protectival is not just a supplement, but a life saver. It helped me gain back my strength, my health and my hope.


—Mary  S.

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