Page 1 - Reviews - Crystal Star, Focus, 60 Vegetarian Capsules - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorised distributors.Show more
4.7
Based on 18 ratings
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What customers say
Customer reviews (9)
Product reviews solely reflect the views and opinions expressed by the contributors and not those of iHerb. iHerb does not verify or endorse any claims made in these reviews. Statements regarding food supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
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English (UK)
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English (UK)
Translated reviews
AleksandraErmola
Gold
Posted on 17/04/2026
United States
1,234
0
0
585
Working additive
Verified Purchase
I took this complex as a course. It feels like it's not a classic nootropic or stimulant. The effect is mild, without any sudden changes. In the first few days: I feel almost nothing; there's no "on" like with coffee or Alpha GPC. After 1-2 weeks: I find it a little easier to maintain focus; I'm less distracted; I feel calmer and more focused.
Auto-translated from Russian
JESSICA
Gold
Posted on 26/04/2026
Macau
1,928
0
0
51
ok
Verified Purchase
Enhance Focus: Crystal Star contains 12 all-herbal ingredients to help improve concentration and extend focus time. Clarify Thoughts: Crystal Star promotes mental clarity, reduces mental fog, and enhances cognitive performance. Support Memory: Crystal Star assists in memory formation and recall, suitable for learning and work. Affordable and trustworthy, highly recommended, and a repeat purchase.
Auto-translated from Chinese Traditional
iHerb Customer
Gold
Posted on 27/02/2026
Ukraine
3,776
0
0
93
Verified Purchase
Excellent product quality, good ingredients, great size, price advantage on the market, I buy it often, everything is always very cool, easy to use, I highly recommend it.
Auto-translated from Ukrainian
blondums
Gold
Posted on 19/11/2025
Latvia
472
0
0
38
favorite
Verified Purchase
Good effect, and good value for the money. Would definetly reccomend.
Auto-translated from English
JS
Gold
Posted on 10/04/2026
Macau
1,072
0
0
55
ok
Verified Purchase
First, it's inexpensive; second, the quality is guaranteed; and third, the results are remarkable. Highly recommended!
Auto-translated from Chinese Traditional
Hebaabuhalawa
Gold
Posted on 25/12/2025
Jordan
490
13
1
61
Distinguished
Verified Purchase
A good dietary supplement, good price, excellent quality, and taste.
Auto-translated from Arabic
Darina
Gold
Posted on 13/12/2025
United States
4,678
0
1
49
Excellent!
Verified Purchase
Crystal Star is excellent quality, contains useful ingredients, and is a convenient dosage.
Auto-translated from Russian
iHerb Customer
Silver
Posted on 8/01/2026
Italy
111
0
0
0
Verified Purchase
Very good quality. Best ingredients with a lots of benefits.
Auto-translated from English
iHerb Customer
Posted on 16/07/2026
Japan
40
0
0
0
Different results for different users
Verified Purchase
For me it made me feel weird. Not at all focused.
Auto-translated from English