vitamin c and zinc
Worth a lookShows low returns (0.0%), but strong incumbent ratings (4.7★) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great7.7%search→purchase rate — share of searches ending in a sale
Avg price
Good$14.66avg listing price — sweet spot $15–$100
Price range
Good$4.80–$29.28cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$420K$420K/yr · 372K searches
Brand share
Good72%top-5 brand share — brands hold most of the demand
Competition
Okay62%top-5 click share — leaders hold, buyers still browse
Review moat
Bad8,016.53avg incumbent reviews — the moat a new listing must climb
Growth
Bad-12.9%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin c and zinc is a $420K/yr Amazon United States market (372K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Jan–Feb. Verdict: Worth a look — 50/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
vitamin c and zinc market data
- Units sold / yr
- 30K–40K
- avg 1,500–2,000/product
- Revenue / yr
- $440K–$586K
- units × avg price
- Conversion rate
- 7.7%
- Avg BSR
- #153
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 63%
- Out of stock
- 0.0%
- Avg brand age
- 77 months
- Avg seller age
- 149 days
Competition & brand share
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.Brands
16 flat
Sellers
108
Top-5 brand share
72%
Top 20: 100%
Top-5 click share
62%
Top 20: 100%
Open market
20%
- Nature's Bounty20%
- NOW Foods16%
- Nutricost13%
- Nature Made12%
- Viva Naturals11%
- Carlyle8%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -12.9% search growth over the last 90 days.Peak months: Jan, Feb · busiest ÷ quietest = 2.0×
Top vitamin c and zinc search terms
- vitamin c and zinc98K/yr
- vitamin c with zinc66K/yr
- vitamin c zinc41K/yr
- zinc and vitamin c40K/yr
- zinc vitamin c32K/yr
- zinc with vitamin c15K/yr
- vitamin c and zinc supplement10K/yr
- zinc c5K/yr
- c zinc5K/yr
- c and zinc5K/yr
Top vitamin c and zinc products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Natures Bounty Vitamin C + Zinc Vitamin Supplement Supports Immune Health 60 mg 60 Tablets
Nature's Bounty$7.774.7★7,591 rev
Nutricost Vitamin C with Zinc Capsules 120 Servings Gluten Free GMO-Free
Nutricost$14.764.8★1,764 rev
Nature Made Super C Tablets with Vitamin D3 and Zinc 60 Tablets
Nature Made$12.504.8★8,734 rev
NOW Foods Supplements C-1000 & Zinc Immune Seasonal Support Formula* Antioxidant Protection* 180 Veg Capsules
NOW Foods$15.594.8★1,047 rev
Carlyle Vitamin C with Zinc | 250 Softgels | Bioavailable | Ascorbic Acid
Carlyle$10.004.7★977 rev
Newest
by launch date
BulkSupplements.com Vitamin C with Zinc Capsules - Vitamin C 1000mg & Zinc 15mg for Immune Support - Vegan 2 Capsules per Serving 360 Veg Count (Pack of 1)
BulkSupplements$19.34210 rev
Now Supplements C-1000 Zinc & D-3 Seasonal Immune Support* 100 Veg Capsules
NOW Foods$10.79605 rev
Zicam Daily Immune Support Gummy Supplement Citrus Strawberry 70 Count
Zicam$11.191,513 rev
Q Defend Quercetin Supplement with Zinc Vitamin C Vitamin D Elderberry Turmeric Black Pepper Garlic Ginger Sea Moss Lysine Stinging Nettle Reishi Mushroom Immune Support 60 Capsules
Clean Nutraceuticals$27.827,438 rev
Viva Naturals Vitamin C and Zinc Supplements 1000mg - Zinc 20mg (250 Veggie Capsules) - High-Potency & Vitamin C with Zinc for Immune Support - Non-GMO Gluten Free (8 Months Supply)
Viva Naturals$25.122,585 rev
Trending
90-day click momentumBulkSupplements.com Vitamin C with Zinc Capsules - Vitamin C 1000mg & Zinc 15mg for Immune Support - Vegan 2 Capsules per Serving 360 Veg Count (Pack of 1)
BulkSupplements$19.344.6★
Airborne Citrus Chewable Tablets 116ct | Immune Support Supplement with 1000mg Vitamin C + Vitamins A D E Zinc Selenium & Manganese | Herbal Blend | Gluten Free
Airborne$18.444.7★
NOW Foods Supplements C-1000 & Zinc Immune Seasonal Support Formula* Antioxidant Protection* 90 Veg Capsules
NOW Foods$8.654.8★
Nutricost Vitamin C with Zinc Capsules 120 Servings Gluten Free GMO-Free
Nutricost$14.764.8★
Natures Way Zinc Lozenges with Vitamin C & Echinacea Wild Berry 60 ct
Nature's Way$4.804.6★
What buyers say about vitamin c and zinc
What buyers praise and complain about, mined from review topics.What buyers love
“Great buy from a trusted company”
“Good tasting vitamin”
“Good immune support”
“Great taste”
“No more colds”
“Value for your money”
“As described”
“these are chewables”
“My system is better using this”
“Ease of use”
What buyers complain about
“Not enough Vitamin C for me”
“he has a hard taking pills”
“Side effects”
“Lingering unpleasant taste”
“Not worth it”
“Didn't realize this product was made with artificial sweeteners, very sweet and sugary tasting”
“chewy”
“Since their Quality Control seems to be lacking”
“The capsules are too large”
“Stomachache”
Top return reasons
Common questions
- Is vitamin c and zinc profitable to sell on Amazon United States?
- The niche generates $420K/yr across 19 tracked products. 90-day search growth is -12.9%. Flapen's verdict: Worth a look (50/100).
- How competitive is the vitamin c and zinc niche?
- 16 brands and 108 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 72% of demand.
- What do buyers complain about in vitamin c and zinc?
- Top complaints mined from reviews: Vitamin, Dosage, Side Effects. The return rate is 0.0%.
- When does demand for vitamin c and zinc peak?
- Demand peaks in Jan–Feb; the busiest month runs 2.0× the quietest.
- What does it cost to enter the vitamin c and zinc niche?
- Listings span $4.80–$29.28; the average listing price is $14.66 (sweet spot $15–$100). The average incumbent carries 8,017 reviews — the moat a new listing must climb.