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Glycine Powder

Fail

The top 5 brands take 100% of clicks, so Glycine Powder is a Fail.

Flapen Score
36
36 / 100
Ranks 1,876 of 2,035 Health & Personal Care niches · −12 vs the category median of 48
Market size
£122K/yr64K searches / yr
90-day growth
-28.1%search demand this quarter
Competition
92%top-5 click share · 5 brands · 7 sellers

Flapen Score

Glycine Powder against its category

The dotted line is the Health & Personal Care average. Past it, Glycine Powder is stronger. Inside it, weaker.

36Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Glycine Powder market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Glycine Powder 64K times last year and spent an estimated £122K. All 5 brands take every click. Flapen scores it 36 out of 100, a Fail.

01 · Demand

20.4% of searches ended in a purchase last week.

Shoppers searched for this 64K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 20.4% of those searches ended in a purchase. Searches in the last 90 days moved -28.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated £122K a year.

Searches, last 12 months
64K
Growth, 90 days vs prior 90
-28.1%
Conversion, latest week
20.4%
Market size, estimated
£122Ka year
Top search term
glycine powder59K searches a year

02 · Price

A sale here is worth £9.32.

Listings sell for £9.32 on average, from £3.97 to £18.00. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 750 to 1,000 of them. At £9.32 that is £7K to £9K a year per listing.

Average price
£9.32under the $15 to $100 sweet spot
Price range
£3.97–£18.00
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
10K–13K
Units per listing a year
750–1,000
Revenue per listing a year
£7K–£9K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

50% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 19.5% of listings are out of stock. The average listing ranks #325 within Diet & Nutrition. It carries 697 reviews at 4.58 stars, so a new listing needs social proof before a better product.

Sponsored listings
50%
Prime listings
100%
Out of stock, average day
19.5%
Average rank
#325in Diet & Nutrition
Average rating
4.58 starsAmazon United Kingdom average 4.36 stars
Average reviews
697per listing
Listings tracked
8

04 · Newcomers

Amazon counts 1 of last year's 1 launches as successful.

1 products launched here in the last 12 months. Amazon counts 1 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 44 months on average, so the names here are settling in.

Launched, last 12 months
1
Successful launches
1Amazon's first-year sales bar
Average brand age
44 months

Products

Top Glycine Powder products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 92% of clicks. A locked shelf that new listings rarely crack.

£0£12K£24K£37K£49K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

7

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

92%

Top 20: 100%

Open market

0%

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

Demand

Glycine Powder search demand

Weekly searches over the year. Pick a range.

2K1KSpike '26May '26May '26May '26Jun '26Jun '26Jul '26

Search terms

Top Glycine Powder search terms shoppers use

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

  • glycine powder59K/yr
  • glycine powder organic3K/yr
  • glycine powder 1kg2K/yr

Reviews and returns

What reviews say buyers love and hate about Glycine Powder

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Sleep Quality13%+1.17

Im not an expert just historically a very poor sleeper

I wasnt staying asleep though

It did make me tired about two hours after taking it

Side Effects9%−0.06

It did make me tired about two hours after taking it

serious side effects are possible

Overdose taking it everyday made me sedated and nauseuous

Functionality-Overall8%−0.07

Not sure its working but will keep taking for a while

No results

Quality-Overall6%−0.06

Bad quality

it at least seems poorer quality than Bulk

I don't think this is very good quality

Advertised Vs Actual Product5%−0.02

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

this is no different to my pictured current brand

Love

Sleep Quality23%+1.17

Helps me sleep better

Better sleep

Help my sleep so much

Taste-Overall9%+0.39

Tastes nice as well

has no unpleasant taste

The taste is naturally sweet and pleasant

Quality-Overall8%−0.06

Good quality product

Solid, value glycine with a clean profile

Budget-friendly & pure

Value For Money8%+0.81

Good deal

Good value for money

the 100 servings offer excellent value for money

Solubility6%+0.29

Mixes easily

The powder mixes well

This mixes well

Return

0.1% Return rate 0% Fixable by listing

Ease Of Use100%▁▁█▁▁▁

FAQ

Common Glycine Powder questions

Answered from the same tracked data.