Page 1 - Reviews - Primaforce, Nattokinase, 100 mg, 120 Capsules - iHerb
Your preference has been updated for this session. To permanently change your account setting, go to My Account
As a reminder, you can update you preferred country or language anytime in My Account
> beauty2 heart-circle sports-fitness food-nutrition herbs-supplements pageview
Click to view our Accessibility Statement
}
Free delivery over £29.00
checkoutarrow
Supplements
Sports
Bath & Personal Care
Beauty
Grocery
Home
Baby & Kids
Pets
Brands A–Z
Health Goals
Deals
Bestsellers
New

Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorised distributors.Show more
4.6
Based on 13 ratings
9
3
1
0
0
Write a review
What customers say
(13)
 
Rating

Rating

Languages
English (UK)
Languages
Show auto-translated reviews(13)
Show reviews with images only
Review images
English (UK)
Translated reviews
Lilyofthevalley
Gold
Posted on 5/04/2026
Romania
410
55
4
148
Verified Purchase
We buy it for its immense health benefits. I usually can't stand anything soy-related, but this, as a medicine, I think my stomach can tolerate.
Auto-translated from Romanian
iHerbCustomer
Silver
Posted on 9/09/2026
Japan
146
0
0
33
Instead of natto.
Verified Purchase
I've heard that natto has better ingredients, so I take this supplement on days I can't eat it. It doesn't have any particular smell or taste. Apparently, it's most effective for detoxification when taken before bed.
Auto-translated from Japanese
iHerb Customer
Silver
Posted on 11/04/2026
Belgium
153
0
5
24
Seems fine
Verified Purchase
No side effects neither stomach issues,I took it for the night,waited about 2houres then took the California gold nutrition bromelain .I definitely think the natokinaze California gold nutrition is better but it was out of stock.I use those products for immune system and digestion as well as for my veins.It was my first day of this natokinaze
Auto-translated from English
JO
Silver
Posted on 7/11/2025
Hong Kong
134
0
0
11
Verified Purchase
The ingredients are simple, and I hope there will be a version with a higher dosage. I plan to take it for a while to observe the effects, and I hope it will help with blood circulation.
Auto-translated from Chinese Traditional
Marie
Silver
Posted on 16/03/2026
Canada
246
0
58
467
Verified Purchase
Excellent product but I wish there would be more mg in each caps. I have to use 10 caps a day!
Auto-translated from English
iHerbCustomer
Posted on 29/01/2026
Japan
95
1
0
89
Verified Purchase
The smell isn't too bad and it's a great product for me as I don't like natto.
Auto-translated from Japanese
iHerb Customer
Silver
Posted on 28/01/2026
Japan
137
0
0
14
Verified Purchase
This time I bought it because it was cheap. I think the ingredients are good.
Auto-translated from Japanese
iHerbCustomer
Gold
Posted on 7/08/2025
Ukraine
1,578
3
39
267
Прекрасно!
Verified Purchase
Is a high quality product made in the USA! Thet feature quality ingredient profiles and a huge selection of products.
Auto-translated from English
iHerbCustomer
Gold
Posted on 5/02/2026
Ukraine
1,402
5
2
296
Чудово!
Verified Purchase
Is a high quality product made in the USA! Thet feature quality ingredient profiles and a huge selection of products
Auto-translated from English
Lily
Silver
Posted on 7/07/2026
Hungary
121
0
10
4
Verified Purchase
I haven't started using this yet—I still have some from my previous order—but its biggest advantage is how clean it is, so I'll definitely stick with this one.
Auto-translated from English