
Citrus Bioflavonoids (Vitamin C)
What's inside
Supplement Facts
| Amount Per Serving | |
|---|---|
| vitamin C | 1000 mg |
| calcium | 180 mg |
| phosphorus | 140 mg |
| Proprietary Blend | 525 mg |
| grapefruit bioflavonoid extract | † |
| hesperidin | † |
| lemon bioflavonoid extract | † |
| orange bioflavonoid extract | † |
| rutin | † |
| rose hips extract | † |
Recommended use
Take 2 tablets daily with a meal.
Days supply
45 days
UPC
099904016460
Product categories
Health conditions
Expiration date
12/2026
How it works
Nature's Sunshine Vitamin C, Citrus Bioflavonoids provides protection from free radicals. Bioflavonoids are natural compounds that contain vital nutrients. Vitamin C, Citrus Bioflavonoids blends 50 mg each of bioflavonoids from lemon, orange, grapefruit along with hesperidin complex, rutin, and rose hips extract. Each capsule, made with no starch, sugar, artificial flavors or colors, provides 835 percent of the daily value or 500 mg of Vitamin C.
STOCK NUMBER: 1646-4
Why take this product?
- ✓Supports the immune system
- ✓Fights free radicals
- ✓Nourishes bodily tissue development
- ✓Assists in production of collagen

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Ask a NaturopathFrequently Asked Questions
Everything you need to know about this product.
What is Nature's Sunshine Citrus Bioflavonoids (Vitamin C)?
This is a vitamin C formula that goes beyond basic supplementation by blending 1,000 mg of vitamin C with a robust complex of citrus bioflavonoids from lemon, orange, and grapefruit, along with hesperidin, rutin, and rose hips extract. Together, these naturally occurring compounds support antioxidant defense, help fight free radicals, and promote immune system health.
What do the bioflavonoids and other key ingredients do?
Citrus bioflavonoids from lemon, orange, and grapefruit work alongside hesperidin and rutin to complement vitamin C's antioxidant activity. Rose hips extract provides additional botanical support, while the formula also supplies calcium and phosphorus. Together, these ingredients may help support connective tissue health, collagen production, and skin elasticity.
How do I take Citrus Bioflavonoids (Vitamin C)?
Take 2 tablets daily with a meal. Each bottle contains 90 tablets, providing a 45-day supply at the recommended serving.
Who is this product a good fit for?
It's a great choice for adults looking for comprehensive vitamin C support that includes the synergistic benefits of citrus bioflavonoids. It may be especially helpful for those interested in supporting their immune system, cardiovascular health, skin elasticity, or connective tissue. As always, anyone who is pregnant, nursing, or taking medication should consult their healthcare provider before starting any supplement.
How does this compare to other Nature's Sunshine vitamin C products?
This formula stands out for its rich bioflavonoid complex featuring six complementary ingredients alongside vitamin C. If you prefer a slow-release option, Vitamin C (1000 mg, Time Release) delivers vitamin C gradually throughout the day in 60 tablets. Chewable Vitamin C offers a convenient chewable tablet, while Vitamin C Ascorbates comes as a 9 oz powder for those who prefer to mix their supplement into a drink. For broader immune support, Solstic Immune comes in convenient single-serve packets, and Thai-Go Mangosteen Juice provides antioxidant support in a liquid form.
What people are saying
- Mark Roberge9/15/2025Citrus Bioflavonoids
Best vitamin C supplements
- Walter Neill9/15/2025Great Vitamin C
I have found this to be the best vitamin C for me. I prefer to take two a day instead of one 1000 mg. It is much easier on my system and I think the citrus Bioflavonoids are beneficial to the immune system.
- Diane Williams9/15/2025Citrus Bioflavonoids (Vitamin C)
I take this along with other vitamins. I believe this helps guard against the viruses. I, also, believe Perfect Eyes is very good for me. My eye doctor tells me each time I go to keep taking my vitamins. I have shown her what I take.
- Charles Roberts9/15/2025No harmful additives
I recently learned my old vitamin c tabs contained harmful additives. This product had none, just healthy goodness.
- Mari Sanchez9/15/2025I wish it was a capsule
I was excited about the ingredients and when I got it realized they were tablets which I don’t like (I feel I don’t digest them well). Caring Sunshine customer service quickly issued a refund. Thank you.
- Kimberly Amparon9/15/2025Citrus Bioflavonoids
I order this vitamin, seasonally, to give myself some extra Vitamin C in an easy to digest form. Highly recommend
- Laura Masella9/15/2025
Great company!
- SANDRA ZUKOWSKI9/15/2025WONDERFUL!
I was having skin issues for the last 3 months, and within a few days of taking Citrus Bioflavonoids (Vitamin C) my skin cleared up. So grateful to Nature's Sunshine Products and Caring Sunshine.
- Debbie. Lee9/15/2025Citrus bioflavonoids
Been using for years, it's my go to for extra Vit C
- Sarah E9/15/2025Great Product
Midwife reccomended I take during my 3rd trimester of pregnancy. Working great!
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