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
(9)
 
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English (UK)
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AleksandraErmola
Gold
Posted on 17/04/2026
United States
1,234
0
0
508
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
50
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
86
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
53
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.
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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