Is astaxanthin profitable to sell on Amazon United Kingdom?

The niche generates £419K/yr across 30 tracked products. 5 of 13 products launched in the last 360 days are still selling. 90-day search growth is -30.3%. Flapen's verdict: Worth a look (61/100).

How competitive is the astaxanthin niche?

25 brands and 30 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 50% of demand.

What do buyers complain about in astaxanthin?

Top complaints mined from reviews: Dosage, Advertised Vs Actual Product, Vegan/Organic. The return rate is 0.0%.

When does demand for astaxanthin peak?

Demand peaks in Jan–Feb–Mar–Apr; the busiest month runs 4.1× the quietest.

What does it cost to enter the astaxanthin niche?

Listings span £5.32–£26.32; the average listing price is £13.23 (sweet spot $15–$100). The average incumbent carries 547 reviews — the moat a new listing must climb.

astaxanthin

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Brand share

Great50%

top-5 brand share — no brand owns this niche

Conversion

Great8.6%

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

Review moat

Good547

avg incumbent reviews — the moat a new listing must climb

Competition

Good45%

top-5 click share — leaders hold, buyers still browse

Avg price

Good£13.23

avg listing price — sweet spot $15–$100

Market size

Good£419K

£419K/yr · 369K searches

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Good£5.32–£26.32

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

Growth

Bad-30.3%

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

Signals No Dominant Brand

According to Flapen's Amazon United Kingdom niche tracking, astaxanthin is a £419K/yr Amazon United Kingdom market (369K searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Jan–Feb–Mar–Apr. Verdict: Worth a look — 61/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

astaxanthin market data

Units sold / yr: 30K–40K; avg 1,000–1,250/product
Revenue / yr: £397K–£529K; units × avg price
Conversion rate: 8.6%
Avg BSR: #19
Page quality: 0%
Prime: 100%
Sponsored: 87%
Out of stock: 7.4%
Avg brand age: 38 months
Avg seller age: 165 days

Competition & brand share

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.

Brands

25 rising

Sellers

Top-5 brand share

50%

Top 20: 96%

Top-5 click share

45%

Top 20: 92%

Open market

42%

BANDINI13%
Tamiodfo11%
ALPHA019%
BOIUOITI9%
Horbäach8%
WeightWorld8%

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — -30.3% search growth over the last 90 days.

Peak months: Jan, Feb, Mar, Apr · busiest ÷ quietest = 4.1×

Open Trend

Top astaxanthin search terms

astaxanthin232K/yr -22.9%7.7% conv.
astaxanthin high strength42K/yr -22.5%9.5% conv.
astaxanthin 12mg20K/yr -29.6%6.7% conv.
astaxanthin 24mg7K/yr +21.1%6.4% conv.
astaxanthin supplements20K/yr -42.1%5.9% conv.
zeria astaxanthin5K/yr -71.5%2.3% conv.
astaxanthin antioxidant supplements7K/yr -41.6%3.6% conv.
astaxanthin uk3K/yr -70.3%5.8% conv.
belano astaxanthin15K/yr -96.3%5.6% conv.
belanos astaxanthin softgels12K/yr -98.0%1.0% conv.

All search terms

Top astaxanthin 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Astaxanthin 12mg Supplements 120 Softgels Premium Astaxanthin Antioxidant Supplements Supports Eye Joint Internal Circulation Skin Health & Natural Tanning Fresh Microalgae Source

Tamiodfo£10.334.3★234 rev

BANDINI£17.244.5★2,107 rev

Astaxanthin Supplements 12mg 120 Softgels Premium Astaxanthin Antioxidant Supplement Supports Eye Skin Joint Brain Heart & Immune System Health Fresh Microalgae Source Non-GMO & No Gluten

BOIUOITI£11.124.2★763 rev

Wild-Algae Astaxanthin 160mg - Providing 8mg Astaxanthin Antioxidant - 90 Softgels - Resealable and Recyclable Pouch by Alpha01

ALPHA01£8.144.6★391 rev

Astaxanthin Supplement 18mg | 180 High Strength Softgels | Naturally Sourced from Haematococcus Pluvialis Algae | By Horbaach

Horbäach£8.194.1★277 rev

Newest

by launch date

Astaxanthin Supplements 24mg - 120 Softgels | Premium Natural Antioxidant from Microalgae | Eye Skin Brain Joint Heart & Immune Health Support | Non-GMO Gluten-Free

WENDAXINGXY£12.836 rev

1mo ago

HealthEssent Astaxanthin High Strength Algae Oil 80mg Complex - Microalgae Carotenoid from Haematococcus Pluvialis - 90 Vegan Softgel Capsules - Antioxidant Supplements for Skin & Eyes Non-GMO

HealthEssent£7.518 rev

2mo ago

Astaxanthin

DEJIN£8.512 rev

5mo ago

Astaxanthin 12mg Supplements Astaxanthin High Strength Antioxidant Supplement 120 Softgels 2 Pack Supports Eye Skin Joint Heart Brain & Immune Health No Gluten Non-GMO with Pill Organizer

Sword Lion£21.0441 rev

6mo ago

Astaxanthin Supplements 12mg - 120 Softgels | Premium Natural Antioxidant from Microalgae | Eye Skin Brain Joint Heart & Immune Health Support | Non-GMO Gluten-Free

ZUZOKKAHA£10.42360 rev

7mo ago

What buyers say about astaxanthin

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

What buyers love

Ease Of Chewing/Swallowing11%

“Swallow it”

Quality-Overall9%

“Excellent product”

Value For Money8%

“good value for money”

Ease Of Use6%

“This came in handy”

Vitamin6%

“I have been adding these to my vitamins intake for years now”

Advertised Vs Actual Product4%

“As described”

Skin Health4%

“I see a great improvement in my skin texture”

Dosage3%

“Strong dose”

Soft Feel3%

“skin is so soft”

Joint Pain3%

“The joints feel decent too”

What buyers complain about

Dosage10%

“Far to little per capsule to have any effect whatsoever”

Advertised Vs Actual Product7%

“Highly misleading product”

Vegan/Organic7%

“NOT VEGAN”

Functionality-Overall5%

“Not worked for me”

Ingredients-Overall4%

“Ingredients not contained as advertised”

Size-Overall4%

“The softgels themselves are small”

Side Effects3%

“first a few days I had some minor efect with nausea”

Acid Regulator/Stomach Ache Relief2%

“Gave me a very bad upset tummy”

Color Fading/Discoloration2%

“have definitely noticed a change in skin colour already”

Value For Money2%

“which makes this extremely expensive”

Common questions

Is astaxanthin profitable to sell on Amazon United Kingdom?: The niche generates £419K/yr across 30 tracked products. 5 of 13 products launched in the last 360 days are still selling. 90-day search growth is -30.3%. Flapen's verdict: Worth a look (61/100).
How competitive is the astaxanthin niche?: 25 brands and 30 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 50% of demand.
What do buyers complain about in astaxanthin?: Top complaints mined from reviews: Dosage, Advertised Vs Actual Product, Vegan/Organic. The return rate is 0.0%.
When does demand for astaxanthin peak?: Demand peaks in Jan–Feb–Mar–Apr; the busiest month runs 4.1× the quietest.
What does it cost to enter the astaxanthin niche?: Listings span £5.32–£26.32; the average listing price is £13.23 (sweet spot $15–$100). The average incumbent carries 547 reviews — the moat a new listing must climb.