Is tmg profitable to sell on Amazon United Kingdom?

The niche generates £66K/yr across 19 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -12.8%. Flapen's verdict: Worth a look (51/100).

How competitive is the tmg niche?

18 brands and 17 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 67% of demand.

What do buyers complain about in tmg?

Top complaints mined from reviews: Size-Overall, Ingredients-Overall, Quality-Overall. The return rate is 0.0%.

When does demand for tmg peak?

Demand peaks in Feb–Mar–Apr; the busiest month runs 2.8× the quietest.

What does it cost to enter the tmg niche?

Listings span £4.91–£21.42; the average listing price is £11.76 (sweet spot $15–$100). The average incumbent carries 101 reviews — the moat a new listing must climb.

tmg

Worth a look

Shows low returns (0.0%), but a small market ($66K/yr) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great12.0%

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

Review moat

Great100.58

avg incumbent reviews — the moat a new listing must climb

Brand share

Good67%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Okay£11.76

avg listing price — sweet spot $15–$100

Price range

Okay£4.91–£21.42

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

Competition

Okay67%

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

Growth

Bad-12.8%

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

Market size

Bad£66K

£66K/yr · 47K searches

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, tmg is a £66K/yr Amazon United Kingdom market (47K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Feb–Mar–Apr. Verdict: Worth a look — 51/100.

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

tmg market data

Units sold / yr: 5K–6K; avg 100–250/product
Revenue / yr: £59K–£71K; units × avg price
Conversion rate: 12.0%
Avg BSR: #1,597
Page quality: 0%
Prime: 100%
Sponsored: 68%
Out of stock: 5.9%
Avg brand age: 46 months
Avg seller age: 188 days

Competition & brand share

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 rising

Sellers

Top-5 brand share

67%

Top 20: 100%

Top-5 click share

67%

Top 20: 100%

Open market

28%

Longevity Box24%
MetaSuperfoods16%
Vitamatic15%
NOW6%
Pure: Vitality5%
vP Vitality Pro5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -12.8% search growth over the last 90 days.

Peak months: Feb, Mar, Apr · busiest ÷ quietest = 2.8×

Open Trend

Top tmg search terms

tmg24K/yr -10.5%11.6% conv.
tmg supplement14K/yr -15.1%10.3% conv.
trimethylglycine7K/yr -6.6%8.1% conv.
tmg supplements uk2K/yr -94.1%0.0% conv.

All search terms

Top tmg 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 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Longevity Box TMG 750mg 120 Capsules | 99% Pure Trimethylglycine (Betaine) | Supports DNA Methylation Liver & Heart Health | Vegan Non-GMO

Longevity Box£15.254.3★293 rev

TMG 120 Capsules (1200mg) 99% Pure Trimethylglycine Supplement as Betaine | High Strength 1-A-Day | 4 Months Supply | Liver Heart Health | Liposomal Delivery for Max Absorption Longevity Vegan

MetaSuperfoods£13.224.4★126 rev

Vitamatic TMG Supplements 1000mg - Trimethylglycine - Betaine Anhydrous - 120 Tablets - 120 Servings - Non-GMO & Gluten Free

Vitamatic£9.044.2★390 rev

Now Foods TMG (Trimethylglycine) 1.000mg 100 Vegan Tablets Lab-Tested High Dose Betaine Gluten Free SOYA Free Vegetarian

NOW£21.424.5★230 rev

Pure Vitality: TMG - 500mg x 90 Capsules - Ultra Pure 99% Trimethylglycine As Betaine High Strength TMG DNA Production Enhance Liver & Heart Function 3rd Party Certified Vegan & Non-GMO

Pure: Vitality£8.284.3★53 rev

Newest

by launch date

Welzo Ultra High Purity TMG 1000mg Pure Trimethylglycine Betaine Anhydrous Cellular Methylation & Cardiovascular Support Supplement Third-Party Tested 60 Capsules

welzo£16.875 rev

2mo ago

Source of Nature£12.3321 rev

9mo ago

Longevix Pure TMG 1000mg 100% Trimethylglycine (Betaine) | (50 Servings) | Vegan Non-GMO Supports Methylation Homocysteine & Liver Health | 3rd Party Tested Supplement

LONGEVIX£16.5240 rev

9mo ago

TMG Supplement 500mg per Capsule | Pure High Strength Trimethylglycine (TMG) Supplement | 60 Capsules | Non-GMO | Made in The UK

NEO-NUTRITION£7.773 rev

10mo ago

Vitamatic TMG Supplements 1000mg - Trimethylglycine - Betaine Anhydrous - 120 Tablets - 120 Servings - Non-GMO & Gluten Free

Vitamatic£9.04390 rev

11mo ago

What buyers say about tmg

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

What buyers love

Quality-Overall13%

“The quality of the powder seems good”

Value For Money9%

“at a reasonable price”

Ease Of Use7%

“simple to use”

Dosage7%

“Clear dosing, clean ingredients, and good value for the number of capsules”

Energy Level5%

“Tmg very good same as creatine for energy”

Solubility5%

“I like that it is a powder as I can mix it with my shake or smoothie”

Focus Enhancement5%

“Good for focus”

Ingredients-Overall4%

“clean ingredients”

Taste-Overall4%

“I really like these, really fresh tasting and fruity”

Vegan/Organic3%

“The capsules are liquid vegan, lab tested, gluten free, soya free and vegetarian, which is a huge plus”

What buyers complain about

Size-Overall7%

“Tablets bit big”

Ingredients-Overall6%

“Ingredient list is too generic”

Quality-Overall6%

“Wouldnt have thought it would have passed QC”

Taste-Overall6%

“its the wrong colour texture and taste”

Dosage6%

“especially as I tend to take a high-ish dose which is rather inconvenient in capsule form”

Ease Of Chewing/Swallowing5%

“Pills hard to swallow”

Value For Money4%

“It is expensive”

Durability3%

“after a few weeks the capsules start to degrade”

Regulates Digestion3%

“The pills are large and rough, making me almost choke while taking it at least a couple of times a week”

Color3%