How competitive is the Glycine Powder niche on Amazon United Kingdom?

5 brands and 7 sellers compete in Glycine Powder on Amazon United Kingdom. The top 5 Glycine Powder products take 92% of clicks and its top 5 brands hold 100% of demand.

What does it cost to enter the Glycine Powder niche?

Glycine Powder sells for £9.32 on average on Amazon United Kingdom, outside our $15–$100 sweet spot. Listings span £3.97–£18.00. The average incumbent carries 697 reviews — the moat a new listing must climb.

Glycine Powder

brand-locked demand (top 5 brands take 100% of clicks) — Glycine Powder doesn't clear our bar today.

Flapen Score

Skip it

This niche Category average

Is Glycine Powder profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Glycine Powder is a £122K/yr Amazon United Kingdom market (64K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 36/100.

Glycine Powder: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -28.1% over the last 90 days and 20.4% of searches end in a purchase.

£122K

revenue / yr

Units sold / yr13K

Search volume / yr-28.1%64K

Conversion rate20.4%

Avg price£9.32

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

open market share

Brands · sellers5 · 7

Top-5 product click share92%

Open market0%

Avg brand age44 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.

0/100

page quality · 8 products

Top Glycine Powder products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Top sellers

by 90-day click share

Bulk Glycine Powder 500 g

Price: £3.97
Rating: 4.6/5
Reviews: 822
Age: 12y ago

LALEA Pure Glycine Powder 500g 100% Pure L-Glycine Amino Acid Supplement Vegan No Additives Highly Soluble Supports Sleep Muscle Recovery & Collagen Production

Price: £8.07
Rating: 4.5/5
Reviews: 306
Age: 5mo ago

Glycine Powder | Pure L-Glycine | Vegan Friendly GMO Free (500g)

Price: £6.97
Rating: 4.6/5
Reviews: 604
Age: 11y ago

Vegavero Pure Glycine Powder 1 kg | 3000 mg Daily Dose | NO Additives Lab-Tested | Recovery Muscle & Collagen Synthesis | with Measuring Spoon | Vegan

Price: £18.00
Rating: 4.5/5
Reviews: 2,394
Age: 3y ago

Glycine Powder 1Kg | Pure L-Glycine | Vegan Friendly GMO Free

Price: £12.39
Rating: 4.6/5
Reviews: 604
Age: 11y ago

Newest

by launch date

LALEA Pure Glycine Powder 500g 100% Pure L-Glycine Amino Acid Supplement Vegan No Additives Highly Soluble Supports Sleep Muscle Recovery & Collagen Production

Price: £8.07
Rating: 4.5/5
Reviews: 306
Age: 5mo ago

Vegavero Pure Glycine Powder 300 g | 3000 mg Daily Dose | NO Additives Lab-Tested | Recovery Muscle & Collagen Synthesis | with Measuring Spoon | Vegan

Price: £11.91
Rating: 4.4/5
Reviews: 222
Age: 1y ago

Glycine Powder 500g Pure Amino Acid Supplement for Sleep Muscle Recovery and Anti-Aging 100% Vegan Non-GMO by Hatton Hill

Price: £8.13
Rating: 4.8/5
Reviews: 16
Age: 2y ago

Vegavero Pure Glycine Powder 1 kg | 3000 mg Daily Dose | NO Additives Lab-Tested | Recovery Muscle & Collagen Synthesis | with Measuring Spoon | Vegan

Price: £18.00
Rating: 4.5/5
Reviews: 2,394
Age: 3y ago

Glycine Powder | Pure L-Glycine | Vegan Friendly GMO Free (500g)

Price: £6.97
Rating: 4.6/5
Reviews: 604
Age: 11y ago

Competition: brands, sellers & click share

The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.

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

Brands

5 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

92%

Top 20: 100%

Open market

Bulk36%
Peak Supps25%
lalea21%
Vegavero14%
Hatton Hill3%

Glycine Powder demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume64KCVR20.4%Products8Brands5Top 5 Brands100%OOS Rate19.5%Rating4.6★Reviews697Avg BSR#325

Top Glycine Powder search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

glycine powder59K/yr -30.3%15.2% conv.
glycine powder organic3K/yr +17.9%9.8% conv.
glycine powder 1kg2K/yr -28.6%14.3% conv.

What reviews say buyers love and hate about Glycine Powder

What buyers mention most, as a share of all reviews.

What buyers love

73% of reviews

Sleep Quality23%

“Helps me sleep better”

Taste-Overall9%

“Tastes nice as well”

Quality-Overall8%

“Good quality product”

Value For Money8%

“Good deal”

Solubility6%

“Mixes easily”

What buyers complain about

56% of reviews

Sleep Quality13%

“Im not an expert just historically a very poor sleeper”

Side Effects9%

“It did make me tired about two hours after taking it”

Functionality-Overall8%

“Not sure its working but will keep taking for a while”

Quality-Overall6%

“Bad quality”

Advertised Vs Actual Product5%

“Vegavero claim in their photo that it is 'MADE IN GERMANY' - that is incorrect”

Glycine Powder return rate & reasons

Why buyers send it back, as a share of all return requests.

0.1%

Return rate

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Ease Of Use

100%

Common Glycine Powder questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Glycine Powder 36/100 on Amazon United Kingdom — Skip it. The niche generates £122K/yr across 8 tracked products. 1 of 1 products launched in the last 360 days are still selling. Search demand moved -28.1% over the last 90 days.

Glycine Powder buyers on Amazon United Kingdom complain most about Sleep Quality, Side Effects, Functionality-Overall, the themes mined from the niche's reviews. Its return rate is 0.1%.