Is vitamin c complex profitable to sell on Amazon United States?

The niche generates $64K/yr across 11 tracked products. 90-day search growth is -8.2%. Flapen's verdict: Skip it (41/100).

How competitive is the vitamin c complex niche?

10 brands and 591 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 84% of demand.

What do buyers complain about in vitamin c complex?

Top complaints mined from reviews: Taste-Overall, Size-Overall, Ease Of Chewing/Swallowing. The return rate is 0.0%.

When does demand for vitamin c complex peak?

Demand peaks in Jan; the busiest month runs 1.8× the quietest.

What does it cost to enter the vitamin c complex niche?

Listings span $11.76–$35.98; the average listing price is $20.36 (sweet spot $15–$100). The average incumbent carries 5,458 reviews — the moat a new listing must climb.

vitamin c complex

Skip it

A small market ($64K/yr) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$20.36

avg listing price — sweet spot $15–$100

Price range

Great$11.76–$35.98

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great7.2%

search→purchase rate — share of searches ending in a sale

Brand share

Okay84%

top-5 brand share — brands hold most of the demand

Review moat

Bad5,457.91

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-8.2%

90-day search growth — must beat 0% to launch

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$64K

$64K/yr · 43K searches

Competition

Bad81%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, vitamin c complex is a $64K/yr Amazon United States market (43K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Jan. Verdict: Skip it — 41/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

vitamin c complex market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $81K–$102K; units × avg price
Conversion rate: 7.2%
Avg BSR: #266
Page quality: 0%
Prime: 100%
Sponsored: 73%
Out of stock: 0.0%
Avg brand age: 99 months
Avg seller age: 153 days

Competition & brand share

The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 flat

Sellers

591

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

81%

Top 20: 100%

Open market

12%

Paleovalley46%
BioSchwartz16%
NOW Foods9%
SUPPLEMENTS STUDIO9%
Nutricost5%
Nature Made4%
Open — no brand owns it (4 brands, 12%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — -8.2% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.8×

Open Trend

Top vitamin c complex search terms

vitamin c complex25K/yr -18.6%4.1% conv.
paleo valley vitamin c8K/yr +41.8%5.6% conv.
paleovalley vitamin c3K/yr -27.4%9.3% conv.
paleovalley essential c complex3K/yr -6.3%23.8% conv.
c complex3K/yr -13.1%4.5% conv.
essential c2K/yr -0.8%16.4% conv.

All search terms

Top vitamin c complex 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Paleovalley Essential C Complex - Vitamin C Supplement for Immune Support - 1 Pack 450mg - Organic Superfoods Unripe Acerola Cherry Camu Camu Amla Berry - No Synthetic Ascorbic Acid - USA Made

Paleovalley$35.984.7★1,876 rev

BioSchwartz Vitamin C Complex Supplement - Vitamin C 1000mg Capsules with Rose HIPS Zinc and Citrus Bioflavonoids for Immune Health Cellular Energy Collagen Production 120 Count (60 Day Supply)

BioSchwartz$13.884.7★1,744 rev

Whole Food Vitamin C Complex - 1450mg Organic Berries - 675 mg Vitamin C per Serving High-Potency Antioxidant & Immune Support with Acerola Amla and Natural Bioflavonoids - Vegan Non-GMO 120 Count

SUPPLEMENTS STUDIO$24.684.8★249 rev

NOW Foods Supplements Vitamin C-1000 Complex with 250 mg of Bioflavonoids Buffered Antioxidant Protection* 180 Tablets

NOW Foods$20.164.7★1,852 rev

Nutricost Vitamin C with Rose Hips 1025mg 240 Capsules Gluten Free

Nutricost$17.144.8★24,028 rev

Newest

by launch date

Liposomal Vitamin C 1700mg - High Absorption Vitamin C Supplement - 180Caps

NUTRAHARMONY$13.44427 rev

1y ago

Whole Food Vitamin C Complex - 1450mg Organic Berries - 675 mg Vitamin C per Serving High-Potency Antioxidant & Immune Support with Acerola Amla and Natural Bioflavonoids - Vegan Non-GMO 120 Count

SUPPLEMENTS STUDIO$24.68249 rev

1y ago

THORNE - Vitamin C 500 mg - Blend of Vitamin C and Citrus Bioflavonoids from Oranges - Supports Immune System Cellular Energy Production & Collagen Synthesis* - Third-Party Certified - 90 Servings

THORNE$21.993,588 rev

4y ago

BioSchwartz Vitamin C Complex Supplement - Vitamin C 1000mg Capsules with Rose HIPS Zinc and Citrus Bioflavonoids for Immune Health Cellular Energy Collagen Production 120 Count (60 Day Supply)

BioSchwartz$13.881,744 rev

6y ago

Dr. Berg Chewable Vitamin C Complex - Made with Organic Non-GMO Berries - 60 Delicious Wafers

Dr. Berg Nutritionals$30.832,145 rev

6y ago

What buyers say about vitamin c complex

What buyers praise and complain about, mined from review topics.

What buyers love

Vitamin27%

“Quality Vitamins”

Quality-Overall25%

“the overall quality feels consistent”

Value For Money7%

“Reasonable price”

Immunity Booster5%

“Great supplement for boosting immune system”

Ease Of Chewing/Swallowing5%

“Easy to swallow”

Advertised Vs Actual Product3%

“They work as they should”

Taste-Overall3%

“taste and texture are good”

Acid Regulator/Stomach Ache Relief3%

“No stomach issues”

Cold Relief2%

“keeps you protected against all the little flu that's always around”

Nutritional Content2%

“Great supplement”

What buyers complain about

Taste-Overall18%

“This tastes nasty”

Size-Overall9%

“The capsules are a little big”

Ease Of Chewing/Swallowing8%

“there chewables so thats difficult”

Vitamin7%

“This vitamin makes me so nauseous”

Dosage5%

“A lower dose might be in order”

Regulates Digestion3%

“Horrible digestive issues”

Color3%

“are darker in color then my previous 5 purchases of this product”

Hard Feel3%

“hard as a rock”

Solubility2%

“they are taken orally so I cant gauge how fast they dissolve”

Side Effects2%

“its been gentler on my stomach than some other vitamin C supplements Ive tried”

Top return reasons

Size-Overall20%

Advertised Vs Actual Product20%

Certifications20%

Vitamin20%

Acid Regulator/Stomach Ache Relief20%

Common questions

Is vitamin c complex profitable to sell on Amazon United States?: The niche generates $64K/yr across 11 tracked products. 90-day search growth is -8.2%. Flapen's verdict: Skip it (41/100).
How competitive is the vitamin c complex niche?: 10 brands and 591 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in vitamin c complex?: Top complaints mined from reviews: Taste-Overall, Size-Overall, Ease Of Chewing/Swallowing. The return rate is 0.0%.
When does demand for vitamin c complex peak?: Demand peaks in Jan; the busiest month runs 1.8× the quietest.
What does it cost to enter the vitamin c complex niche?: Listings span $11.76–$35.98; the average listing price is $20.36 (sweet spot $15–$100). The average incumbent carries 5,458 reviews — the moat a new listing must climb.