colonoscopy prep kit
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Price range
Great$16.68–$101.92cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$65.30avg listing price — sweet spot $15–$100
Conversion
Great7.4%search→purchase rate — share of searches ending in a sale
Market size
Okay$259K$259K/yr · 54K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Bad4,950avg incumbent reviews — the moat a new listing must climb
Growth
Bad-11.3%90-day search growth — must beat 0% to launch
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, colonoscopy prep kit is a $259K/yr Amazon United States market (54K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul–Aug–Sep. Verdict: Skip it — 42/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
colonoscopy prep kit market data
- Units sold / yr
- 4K–5K
- avg 500–750/product
- Revenue / yr
- $261K–$327K
- units × avg price
- Conversion rate
- 7.4%
- Avg BSR
- #441
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 80%
- Out of stock
- 5.1%
- Avg brand age
- 81 months
- Avg seller age
- 151 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
2 flat
Sellers
27
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- Ensure68%
- Impact32%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -11.3% search growth over the last 90 days.Peak months: Jul, Aug, Sep · busiest ÷ quietest = 2.0×
Top colonoscopy prep kit search terms
- ensure surgery immunonutrition shake15K/yr
- ensure surgery16K/yr
- impact advanced recovery drink8K/yr
- ensure surgery drink6K/yr
- nestle impact advanced recovery3K/yr
- impact advanced recovery3K/yr
- nestle impact advanced recovery drink3K/yr
Top colonoscopy prep kit 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 5 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Ensure Surgery Immunonutrition Liquid Shake Bottle Vanilla 8 fl oz 24 Count
Ensure$93.664.4★50 rev
Nestle Impact Advanced Recovery Immunonutrition Drink Vanilla 8.45 oz Carton 10 Ct
Impact$101.924.4★511 rev
Ensure Surgery Perioperative 5-Day Bundle with 3 Ensure Pre-Surgery Clear Carbohydrate Drinks & 20 Ensure Surgery Immunonutrition Shakes
Ensure$88.484.5★436 rev
Ensure Pre-Surgery Clear Carbohydrate Drink Strawberry 10 fl oz 4 Count
Ensure$16.684.6★3,581 rev
Ensure Max Protein Shake | Milk Chocolate | Ready to Drink | 30g Protein for Muscle Health | 1g Sugar 4g Fiber | 11 fl oz 12 Pack
Ensure$25.784.6★20,172 rev
Newest
by launch dateEnsure Surgery Immunonutrition Liquid Shake Bottle Vanilla 8 fl oz 24 Count
Ensure$93.6650 rev
Ensure Surgery Perioperative 5-Day Bundle with 3 Ensure Pre-Surgery Clear Carbohydrate Drinks & 20 Ensure Surgery Immunonutrition Shakes
Ensure$88.48436 rev
Ensure Max Protein Shake | Milk Chocolate | Ready to Drink | 30g Protein for Muscle Health | 1g Sugar 4g Fiber | 11 fl oz 12 Pack
Ensure$25.7820,172 rev
Ensure Pre-Surgery Clear Carbohydrate Drink Strawberry 10 fl oz 4 Count
Ensure$16.683,581 rev
Nestle Impact Advanced Recovery Immunonutrition Drink Vanilla 8.45 oz Carton 10 Ct
Impact$101.92511 rev
Trending
90-day click momentumEnsure Surgery Immunonutrition Liquid Shake Bottle Vanilla 8 fl oz 24 Count
Ensure$93.664.4★
Ensure Max Protein Shake | Milk Chocolate | Ready to Drink | 30g Protein for Muscle Health | 1g Sugar 4g Fiber | 11 fl oz 12 Pack
Ensure$25.784.6★
Nestle Impact Advanced Recovery Immunonutrition Drink Vanilla 8.45 oz Carton 10 Ct
Impact$101.924.4★
Ensure Pre-Surgery Clear Carbohydrate Drink Strawberry 10 fl oz 4 Count
Ensure$16.684.6★
Ensure Surgery Perioperative 5-Day Bundle with 3 Ensure Pre-Surgery Clear Carbohydrate Drinks & 20 Ensure Surgery Immunonutrition Shakes
Ensure$88.484.5★
What buyers say about colonoscopy prep kit
What buyers praise and complain about, mined from review topics.What buyers love
“Good taste. chocolate.”
“Great protein shake”
“Far better than retail supermarkets”
“Best price”
“Good flavor”
“Works as per advertised”
“Ease of use”
“Full of vitamins”
“it worked out okay”
“Kept me hydrated for surgery”
What buyers complain about
“It has a weird aftertaste”
“Extremely expensive”
“thin flavor”
“for me, not a reasonable substitute for all meals”
“The bottles leak”
“It can cause constipation”
“Some high-protein drinks taste overly artificial or chalky”
“found it atypically watery”
“Too sweet”
“Chalky”
Common questions
- Is colonoscopy prep kit profitable to sell on Amazon United States?
- The niche generates $259K/yr across 5 tracked products. 90-day search growth is -11.3%. Flapen's verdict: Skip it (42/100).
- How competitive is the colonoscopy prep kit niche?
- 2 brands and 27 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in colonoscopy prep kit?
- Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.
- When does demand for colonoscopy prep kit peak?
- Demand peaks in Jul–Aug–Sep; the busiest month runs 2.0× the quietest.
- What does it cost to enter the colonoscopy prep kit niche?
- Listings span $16.68–$101.92; the average listing price is $65.30 (sweet spot $15–$100). The average incumbent carries 4,950 reviews — the moat a new listing must climb.