Page 1 - Reviews - NaturesPlus, Super C Complex, Sustained Release, 180 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 6,386 ratings
5,222
709
305
87
63
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What customers say
Customers report significant health improvements and enhanced immunity after using this supplement. Many have been loyal users for years, especially during cold and flu seasons. The product is praised for its high-quality ingredients, balanced formulation with bioflavonoids, and effective dosage. However, a common issue is the large pill size, which some find difficult to swallow. Despite this, the overall sentiment is positive due to its effectiveness in boosting immunity and other health benefits like improved skin appearance. The packaging and price are also appreciated.
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iHerb customer
Posted on Oct 23, 2025
United States
43
3
0
5
Verified purchase
I am RA arthritis. I need vitamin C. I started using this one as the recommendation of my doctor is C complex. It’s every C I need I believe it will help my immune system that it doesn’t have any aftertaste. The package is always good to Saudi Arabia. i’m glad it doesn’t have any after taste.
Bakr
Gold
Posted on Dec 1, 2024
United States
822
0
1
5
Verified purchase
Good quality,best ingredient ,suitable size and package,have many benefit
iHerbCustomer
Gold
Posted on Jul 15, 2025
Saudi Arabia
704
0
0
72
Long-Lasting Immune Support You Can Feel
Verified purchase
This sustained-release vitamin C complex is incredibly effective and well-formulated. Unlike regular vitamin C tablets that flush out quickly, this one provides steady support throughout the day thanks to its time-release mechanism. Each tablet contains a generous dose of vitamin C along with natural bioflavonoids and rose hips, which enhance absorption and effectiveness. The tablets are a bit large, but I don’t mind since I only take one a day with breakfast. The bottle comes with 180 tablets — a full six-month supply if you take one daily. That’s excellent value for such a potent and well-rounded product. Since I started taking it, I’ve had fewer seasonal colds and feel more resilient overall. There’s no aftertaste or stomach irritation, even when I take it without food. If you’re serious about immune support and looking for a vitamin C formula that lasts, this is a fantastic choice.
iHerbCustomer
Gold
Posted on May 27, 2025
Saudi Arabia
1,044
0
0
94
Excellent
Verified purchase
I’ve been using this product for a couple of weeks now and I’m genuinely impressed. The quality is excellent, the ingredients are clean and natural, and I’ve already started to notice a difference. It arrived quickly and was well-packaged. I will definitely be ordering again and recommending it to my friends!
Moustafa
Silver
Posted on Jan 11, 2026
Saudi Arabia
193
9
1
21
شكرا
Verified purchase
Vitamin C formula designed for sustained release, so the nutrient is gradually delivered over time instead of all at once. Includes a blend of vitamin C and supportive co‑nutrients, with a clean ingredient profile and minimal fillers. Tablets are easy to take and the large count makes it a good value for daily use. Practical option if you want gentle, extended immune support and antioxidant activity throughout the day.
BlackNova
Gold
Posted on Dec 1, 2025
Thailand
508
0
4
98
Verified purchase
NaturePlus Super C is an excellent vitamin supplement that stands out for its quality and effectiveness. The tablets are made with high-grade, carefully sourced ingredients, including a potent dose of vitamin C supported by bioflavonoids for better absorption. Users appreciate the clean formula, free of unnecessary fillers or artificial additives. Each tablet is a convenient size—easy to swallow yet packed with the right amount of nutrients to support daily immune health and overall wellness. The combination of superior ingredients and thoughtful design makes NaturePlus Super C a reliable choice for anyone looking to boost their vitamin C intake.
MeeMee
Gold
Posted on Aug 6, 2024
United Arab Emirates
668
308
0
348
Greatممتاز
Verified purchase
A nutrition doctor recommended this type of vitamin to me. Honestly, when I consistently take this vitamin, my immunity improves, especially during weather changes. However, the downside is that the pill is very large, and I have difficulty swallowing it. Additionally, the pill is not a soft gel but a solid one
Lulu
Gold
Posted on Jun 13, 2025
Kuwait
471
0
7
33
Verified purchase
They taste nice and you only need to take one, it also has rutin
JALMOGHRABI
Posted on Apr 12, 2025
Saudi Arabia
19
0
2
3
Must Have
Verified purchase
This supplement never runs out from my house Great quality with effective ingredient Swift effect were you can feel immunity increased immediately, acceptable pill size, soft on stomach Received fast in good package
BlackNova
Gold
Posted on Feb 16, 2026
Thailand
508
0
4
98
Verified purchase
7.0 stars Introduction & context: NaturesPlus Super C Complex, Sustained Release delivers 1,000 mg of vitamin C per tablet—a clinically relevant dose aligning with studies investigating immune function and collagen synthesis. The sustained-release format aims to prolong plasma ascorbate levels, theoretically minimizing urinary excretion. Priced at ~$0.17/tablet, it undergoes NSF third-party testing for purity. However, the proprietary blend obscures exact amounts of bioflavonoids and rose hips. Evidence summary: Two RCTs (n=20–26) show 1,000 mg/day vitamin C reduces cold duration by ~8% in active individuals—modest but consistent. No significant effects on general population immunity. Bioavailability comparisons (ascorbate AUC0-24h) favor liposomal forms over standard tablets, though this product lacks such enhancements. Formulation & quality analysis: Ascorbic acid is the sole active form—bioavailable but prone to degradation. The sustained-release matrix (likely hydroxypropyl methylcellulose) is standard but unproven for superior absorption. Trace contaminants (lead <1 ppm) meet safety thresholds but aren’t ideal for long-term use. Safety & interactions: Generally safe up to 2,000 mg/day; high doses may cause gastrointestinal upset. Caution for renal impairment or iron overload disorders. Minimal interactions, but ascorbate can enhance iron absorption. Value & practicality: Cost-effective for daily immune support. Sustained release may suit those preferring once-daily dosing, though immediate-release alternatives offer similar efficacy at lower prices. Overall verdict + score: Moderate support for immune resilience with practical dosing. Lacks cutting-edge bioavailability features; transparency issues with proprietary blend. Suitable for budget-conscious individuals prioritizing basic ascorbate supplementation. Who it's for: Active adults or those prone to colds seeking affordable immune maintenance. Not ideal for high-dose therapeutic use. I’d opt for liposomal vitamin C if bioavailability were a priority.