Is phgg profitable to sell on Amazon United Kingdom?

The niche generates £50K/yr across 10 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +20.3%. Flapen's verdict: Skip it (45/100).

How competitive is the phgg niche?

9 brands and 10 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in phgg?

Top complaints mined from reviews: Taste-Overall, Value For Money, Functionality-Overall. The return rate is 0.1%.

What does it cost to enter the phgg niche?

Listings span £7.73–£29.40; the average listing price is £16.45 (sweet spot $15–$100). The average incumbent carries 1,495 reviews — the moat a new listing must climb.

phgg

Skip it

A concentrated shelf (top 5 take 87% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great8.9%

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

Avg price

Great£16.45

avg listing price — sweet spot $15–$100

Price range

Good£7.73–£29.40

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

Growth

Good+20.3%

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

Review moat

Good1,494.9

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Bad91%

top-5 brand share — brand-locked demand

Market size

Bad£50K

£50K/yr · 34K searches

Competition

Bad87%

top-5 click share — a locked-up shelf

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, phgg is a £50K/yr Amazon United Kingdom market (34K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 45/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

phgg market data

Units sold / yr: 3K–3K; avg 250–500/product
Revenue / yr: £41K–£49K; units × avg price
Conversion rate: 8.9%
Avg BSR: #56
Page quality: 0%
Prime: 90%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 52 months
Avg seller age: 177 days

Competition & brand share

The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

87%

Top 20: 100%

Open market

invivo54%
Healthy Origins16%
OptiFibre13%
Ancient + Brave4%
SPECIAL INGREDIENTS4%
Inspiriko4%
Open — no brand owns it (3 brands, 5%)

Demand

Weekly Amazon search volume, last 25 weeks — +20.3% search growth over the last 90 days.

Open Trend

Top phgg search terms

phgg15K/yr +35.8%9.0% conv.
phgg hydrolysed guar gum6K/yr +57.2%7.7% conv.
sunfiber7K/yr -19.1%3.7% conv.
partially hydrolyzed guar gum6K/yr +12.5%5.9% conv.

All search terms

Top phgg 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo

invivo£18.384.7★83 rev

Bio.Me Prebio PHGG Refill Pouch (30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo

invivo£16.724.7★83 rev

Healthy Origins Natural Healthy Fiber Dietary Fibre from Guar Gum 226g Vegan Powder Lab-Tested Vegetarian Soy Free Gluten Free Non-GMO

Healthy Origins£20.184.2★54 rev

OPTIFIBRE Fibre Supplement Powder 250g | Natural Soluble Dietary Fibre for Gut Health & Digestive Support | Neutral Flavour Gluten-Free

OptiFibre£15.924.6★286 rev

Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance

Ancient + Brave£29.404.7★59 rev

Newest

by launch date

No Bloat Gummies for Gut Health & Digestion Digestive Enzymes Prebiotic Fibre (PHGG) & Postbiotics Ginger Fennel & Peppermint Bloating Relief Sugar-Free 60 Gummies

DODI HEALTH£19.9411 rev

4mo ago

Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance

Ancient + Brave£29.4059 rev

9mo ago

Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo

invivo£18.3883 rev

10mo ago

Bio.Me Prebio PHGG Refill Pouch (30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo

invivo£16.7283 rev

1y ago

Bulk Fibre Plus Unflavoured 480g

Bulk£9.6457 rev

1y ago

What buyers say about phgg

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

What buyers love

Quality-Overall12%

“The mix itself seems good quality”

Solubility11%

“It dissolves in drinks easily”

Taste-Overall11%

“I love the taste”

Advertised Vs Actual Product7%

“It does what it says”

Nutritional Content7%

“Real-World Nutrition 🌎”

Regulates Digestion6%

“I appreciated that it did not cause any immediate bloating when I first introduced it”

Value For Money6%

“Good value for me”

Ease Of Use5%

“Very easy to mix with things”

Efficiency4%

“effective since day one”

Calcium2%

“Best fibre to take”

What buyers complain about

Taste-Overall19%

“It is virtually tasteless”

Value For Money8%

“Too expensive”

Functionality-Overall5%

“Its ok. Its not as effective as I thought it would be”

Size-Overall4%

“quite large so requires a fair amount of storage space”

Dilute/Watery3%

“Chalk, Bloated and Gassy”

Regulates Digestion3%

“Doesnt ferment in stomach/bowl”

Hair Related3%

“I kept finding tiny black hairs in my glass after making this”

Flavor2%

“Flavourless, disolves quickly”

Quality-Overall2%

“Definitely not as good as another alternative brand I used”

Blood Sugar Level2%

“Dangerous for diabetic”

Common questions

Is phgg profitable to sell on Amazon United Kingdom?: The niche generates £50K/yr across 10 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +20.3%. Flapen's verdict: Skip it (45/100).
How competitive is the phgg niche?: 9 brands and 10 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in phgg?: Top complaints mined from reviews: Taste-Overall, Value For Money, Functionality-Overall. The return rate is 0.1%.
What does it cost to enter the phgg niche?: Listings span £7.73–£29.40; the average listing price is £16.45 (sweet spot $15–$100). The average incumbent carries 1,495 reviews — the moat a new listing must climb.