Page 1 - Reviews - Youtheory, Collagen, 290 Tablets - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.7
Based on 46,438 ratings
36,595
6,104
2,572
697
470
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What customers say
Customers generally find the collagen supplement effective for improving skin, hair, nails, and joint health. Many users report healthier, shinier hair and reduced hair loss after consistent use. Several reviews highlight significant improvements in skin appearance, including a youthful glow and reduced joint pain during exercise. However, a common complaint is the large size of the tablets and the need to take six per day. Some users did not notice immediate benefits and felt more time was needed to judge its effectiveness. The product is praised for its quality ingredients and competitive pricing with fast delivery from iHerb.
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English
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iHerbCustomer
Posted on Sep 24, 2025
Italy
26
21
0
11
excellent
Verified purchase
So I bought this collagen for me for my hair and nail problem this is the second bottle that I purchased what can I say the quality is great the ingredients are top the benefits and the effect is superb the improvement of my hair and nails it so satisfying so now my wife is using it to happy wife happy life l.
3e24d9c2-f26c-40ea-957f-6dadb7540418
Rosy
Posted on Apr 2, 2026
Singapore
28
22
0
3
It's Mine!
Verified purchase
This collagen's quality and benefit are very good and effective in my knee and hair improving journey. I take these 6 capsules , slight big, but acceptable taste especially on my diet period. The deficiency of collagen is very obvious in my age. The composition of contained ingredients works well. The package is sealed properly.
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iHerbCustomer
Posted on Aug 14, 2025
United Arab Emirates
19
18
0
17
Glow From Within – My Go-To Collagen Boost!"
Verified purchase
The Youtheory Collagen supplement is top quality and perfect for supporting healthy skin, hair, nails, and joints. It comes in a large, sturdy plastic bottle with a secure lid, keeping the tablets fresh and easy to dispense. Each serving contains hydrolyzed collagen peptides (Types 1, 2 & 3) along with vitamin C, which helps boost collagen absorption. The tablets have a mild, neutral taste, so they’re easy to take daily without any aftertasteI love that it’s dairy-free, soy-free, gluten-free, and suitable for various diets, making it versatile for different lifestyles. Since I started taking it, my skin feels firmer and more hydrated, my hair grows faster with less breakage, and my nails are stronger than ever. It’s an effortless way to nourish your body from the inside out and see visible results in just weeks.
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Anna
Posted on Aug 2, 2025
Germany
21
2
0
30
Visible results in just 2 weeks!
Verified purchase
I’ve been taking this collagen for a month now, and I already see a real difference. I used to buy another brand, but a friend recommended this one — and I’m so glad I switched! Within two weeks, my skin started to feel smoother and slightly firmer, especially around the jawline. That was the first sign it’s working. After three weeks, I noticed a 70% improvement in my knees — way less cracking and creaking when walking upstairs. That alone is worth it! The quality is excellent, and I really appreciate the clean composition. The tablets include vitamin C, which boosts absorption, and the ingredients support not only skin but also joints, hair, and nails — a real full package. Even though I’m over 50, this supplement fits perfectly into my diet and gives me the benefit I’ve been missing due to collagen deficiency. There’s no strange taste, and the size of the bottle is generous — 290 tablets go a long way. If you’re looking for a high-quality product with visible effects and real improvement, I can definitely recommend this one!
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iHerbCustomer
Silver
Posted on Apr 1, 2026
Hong Kong
193
82
3
4
good quality
Verified purchase
Ingredient composition package is good nice for age benefits is good improvement effect for body is really good my knee is strong deficiency diet is ok good taste
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Mituketa
Silver
Posted on Jan 4, 2026
Philippines
216
11
16
61
excellent
Verified purchase
this needs for every day use. right size to swallow. good quality ingredients that is beneficial for every one. I will definitely buy again, very affordable price. excellent quality for every people who are busy . good for health and body. benefits for health skin bone and tissue, makes u feel and look younger.
LyndaJane
Posted on Jun 12, 2025
Australia
3
3
0
2
Great complements about my skin and hair
Verified purchase
The benefits and improvement's from inside have been noticeable. The collagen has been effective with joint pain, including knees and ankles. Again an easy tasteless tablet to take.
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iHerbCustomer
Silver
Posted on Jun 17, 2025
United Arab Emirates
136
49
0
42
Verified purchase
I’ve been taking Youtheory Collagen with Vitamin C for about 6 weeks now, and I can already see a difference. My skin feels more hydrated and smooth, and my nails are growing faster and no longer breaking. I also feel like my joints are less stiff after workouts. The tablets are a little large, but worth it for the results. I’ll definitely keep using it!”
78ed1f0e-3a4d-40cd-b5e7-3edd1b842d9f
Fionabest
Gold
Posted on Apr 2, 2026
Hong Kong
620
1
57
31
Yay
Verified purchase
Fantastic ingredients and really well made, really recommend a try since it’s very healthy good quality and great size. Can’t wait to see results!
Rehabgmd
Silver
Posted on Mar 30, 2026
Saudi Arabia
151
0
0
5
Verified purchase
Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered