Kelp Powder
Skip itA concentrated shelf (top 5 take 72% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great8.6%search→purchase rate — share of searches ending in a sale
Avg price
Good$14.54avg listing price — sweet spot $15–$100
Price range
Good$7.89–$30.00cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good909.53avg incumbent reviews — the moat a new listing must climb
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$119K$119K/yr · 95K searches
Growth
Okay+2.5%90-day search growth — must beat 0% to launch
Competition
Bad72%top-5 click share — a locked-up shelf
Is kelp powder profitable on Amazon?
According to Flapen's Amazon United States niche tracking, kelp powder is a $119K/yr Amazon United States market (95K searches/yr). The top 5 brands hold 77% of demand. Verdict: Skip it — 49/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
kelp powder market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 8K–10K
- avg 500–750/product
- Revenue / yr
- $116K–$145K
- units × avg price
- Conversion rate
- 8.6%
- Avg BSR
- #1,461
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 67%
- Out of stock
- 4.4%
- Avg brand age
- 78 months
- Avg seller age
- 159 days
Competition: brands, sellers & click share
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.Brands
12 rising
Sellers
37
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
72%
Top 20: 100%
Open market
17%
- Micro Ingredients37%
- NOW Foods14%
- Complete Natural Products10%
- Chew + Heal Labs8%
- Ocean's Balance Clean Taste of Maine7%
- Life Line Pet Nutrition6%
- Open — no brand owns it (6 brands, 17%)
kelp powder demand & seasonality
Weekly Amazon search volume, last 104 weeks — +2.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top kelp powder search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- kelp powder65K/yr
- ascophyllum nodosum7K/yr
- organic kelp powder9K/yr
- kelp powder organic5K/yr
- sea kelp powder4K/yr
- kelp powder for humans4K/yr
Top kelp powder products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Micro Ingredients Organic Kelp Powder 2 lb | Whole Plant Sea | Easy to Mix | Long-Lasting Supply for Smoothies Soups & Recipes | Source of Iodine | Non-GMO Vegan
Micro Ingredients$19.264.5★1,130 rev
Organic Kelp Powder Supplement - Bulk Raw Dry Pure Sea Kelp Seaweed Powder 8oz 75 Serving Thyroid Iodine & Digestion
Complete Natural Products$15.474.3★133 rev
NOW Supplements Kelp Powder Certified Organic Excellent Source of Iodine Super Green 8-Ounce
NOW Foods$9.694.6★476 rev
Organic Kelp Powder for Dogs - 4oz Thyroid & Dental Support with 5cc Scoop
Chew + Heal Labs$9.864.4★416 rev
Oceans Balance Clean Wildcrafted Kelp Powder (Ascophyllum nodosum) from the Gulf of Maine | Rich in Iodine & 70+ Minerals | Supports Metabolism Skin & Immunity | Fathers Day Gift for Dad Husband & Grandpa 16 oz
Ocean's Balance Clean Taste of Maine$12.944.0★11 rev
Newest
by launch date
Pro Powders Cold Processed Seaweed Extract Powder 1LB - Ascophyllum Nodosum Kelp Extract - Makes up to 1800 Gallons - Supports Root Growth Stress Resistance & Nutrient Uptake
DL Wholesale$30.0029 rev
Oceans Balance Clean Wildcrafted Kelp Powder (Ascophyllum nodosum) from the Gulf of Maine | Rich in Iodine & 70+ Minerals | Supports Metabolism Skin & Immunity | Fathers Day Gift for Dad Husband & Grandpa 16 oz
Ocean's Balance Clean Taste of Maine$12.9411 rev
Organic Maine Coast Kelp Seaweed Powder 2oz by My Berry | Dark Green Fresh Kelp Only | (Ascophyllum Nodosum) | US Atlantic Ocean Grown
My Berry$11.989 rev
Asiatic Dishes Korean Kombu Kelp Powder 8 oz No MSG
Asiatic Dishes$12.3017 rev
Organic Kelp Powder for Dogs - 4oz Thyroid & Dental Support with 5cc Scoop
Chew + Heal Labs$9.86416 rev
Trending
90-day click momentumPro Powders Cold Processed Seaweed Extract Powder 1LB - Ascophyllum Nodosum Kelp Extract - Makes up to 1800 Gallons - Supports Root Growth Stress Resistance & Nutrient Uptake
DL Wholesale$30.004.5★
NOW Supplements Kelp 325 mcg of Natural Iodine Supports Healthy Thyroid Function* Super Green 250 Veg Capsules
NOW Foods$10.964.6★
Life Line USDA Certified Organic Ocean Kelp for Pets & Livestock | Supports Skin & Coat Health Immune Function and Dental Hygiene | Promotes Metabolism & Reduces Plaque and Shedding 16 oz
Life Line Pet Nutrition$21.724.6★
Organic Maine Coast Kelp Seaweed Powder 2oz by My Berry | Dark Green Fresh Kelp Only | (Ascophyllum Nodosum) | US Atlantic Ocean Grown
My Berry$11.985.0★
Oceans Balance Clean Wildcrafted Kelp Powder (Ascophyllum nodosum) from the Gulf of Maine | Rich in Iodine & 70+ Minerals | Supports Metabolism Skin & Immunity | Fathers Day Gift for Dad Husband & Grandpa 16 oz
Ocean's Balance Clean Taste of Maine$12.944.0★
What reviews say buyers love and hate about kelp powder
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“As advertised”
“Seems economical”
“I think its great for the dogs They seem to like it as well”
“The breath is already better”
“Easy to use”
“There's no bad smell or anything”
“Dogs seem to like the taste”
“kelp meal provides that”
“The dosage is a very tiny amount so the bottle will last a long time”
What buyers complain about
“dogs can be allergic to this”
“The amount of puke that came out of my poor baby was awful”
“Decreased breath smell”
“Does taste a little fishy”
“Very dangerous product”
“Did not find effective”
“Im shocked if your dog has bad breath”
“has no independent certification”
“Pricey, gimmicky, who knows if it works”
“Abnormally bitter”
Top return reasons
Common kelp powder questions
- Is kelp powder profitable to sell on Amazon United States?
- The niche generates $119K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +2.5%. Flapen's verdict: Skip it (49/100).
- How competitive is the kelp powder niche?
- 12 brands and 37 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 77% of demand.
- What do buyers complain about in kelp powder?
- Top complaints mined from reviews: Allergies, Indigestion, Smell. The return rate is 0.0%.
- When does demand for kelp powder peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the kelp powder niche?
- Listings span $7.89–$30.00; the average listing price is $14.54 (sweet spot $15–$100). The average incumbent carries 910 reviews — the moat a new listing must climb.