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Proflavanol (C100)
Premium antioxidant supplementation. For immune, skin, and cardiovascular support.*
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Discover Proflavanol C100: Antioxidant immune support*
Unlike single-ingredient alternatives, Proflavanol C100 uniquely combines a high dose of top-quality grape seed extract with a wide spectrum of antioxidants and multiple sources of vitamin C for complex, multi-pronged health support.*
This research-backed formula uses cellular science to support the body inside and out.
- Cardiovascular health, circulatory function, and helps maintain cholesterol levels already within a healthy range*
- Provides antioxidant support to help neutralize damage caused by free radicals*
- Supports healthy immune function and overall wellness*
- Supports energy levels and sleep quality*
- Promotes healthy, youthful-looking skin*
As of 2025, our formulation includes a spectrum of additional flavonoids that provide broader antioxidant support against the effects of oxidative stress: Hesperidin, Quercetin, Green Tea Extract (EGCG), and Bilberry Extract.
This means better support across the board–heart health, skin health, immune function, and support for healthy aging.*
Using our Hybrid Technology, we’re able to combine multiple ingredients that otherwise aren’t compatible into a single tablet for easy absorption and simple wellness support. This includes Poly C, our proprietary blend of multiple vitamin C sources.
- Increases and maintains vitamin C levels, outperforming ascorbic acid alone
- Helps support skin firmness and elasticity*
- Activates diverse flavonoid pathways for a wider spectrum of antioxidant support
Explore the science of Proflavonol C100 to learn more.
Using our Hybrid Technology, we’re able to combine multiple ingredients that otherwise aren’t compatible into a single tablet for easy absorption and simple wellness support. This includes Poly C, our proprietary blend of multiple vitamin C sources.
- Increases and maintains vitamin C levels, outperforming ascorbic acid alone
- Helps support skin firmness and elasticity*
- Activates diverse flavonoid pathways for a wider spectrum of antioxidant support
Explore the science of Proflavonol C100 to learn more.
- Helps defend against oxidative stress as you age*
- Supports healthy immune function*
- Helps maintain cardiovascular health*
- Supports the appearance of youthful-looking skin*
Health needs associated with Proflavanol C100: Antioxidant immune support*
What's in Proflavanol C100: Antioxidant immune support*
Key ingredients in Proflavanol C100:
- Premium grape seed extract: This essential source of bioflavonoids provides key benefits for cardiovascular, immune, and skin health.*
- Poly C: This proprietary blend of multiple vitamin C sources supports immune health and collagen production.*
Additional flavonoids:
- Hesperidin
- Quercetin
- Green Tea Extract (EGCG)
- Bilberry Extract
- GM-Free
- Gluten-Free
- Dairy-Free
- Vegetarian
Take one to four Proflavanol C100 tablets each day, preferably with food.
Nutrition adjustments typically take 2–8 weeks to have noticeable effects. Commit to your supplement routine for at least 90 days. Common reports include:
- First two weeks: Antioxidant support begins to help counter everyday oxidative stress.*
- 1–2 months: Support for healthy circulation, energy, and skin appearance.*
- Long-term: Ongoing heart and immune support, and helps maintain cholesterol levels already within a healthy range.*
Product documents
USANA Standards
Every USANA product is backed by science, manufactured in state-of-the-art facilities, and laboratory tested for:
- 01 / 05
Purity
Ensures products are free from contaminants, including heavy metals, pesticides, and residual solvents.
- 02 / 05
Identity
Confirms ingredient identity to determine efficacy, safety, and quality.
- 03 / 05
Composition
Provides critical data on every batch, including weight, thickness, disintegration, and safety.
- 04 / 05
Strength
Includes testing to verify the potency claimed on each product label.
- 05 / 05
Safety
Verifies product safety and quality.
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