isotonic powder
Skip itBrand-locked demand (top 5 brands take 99% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great10.1%search→purchase rate — share of searches ending in a sale
Review moat
Good870.68avg incumbent reviews — the moat a new listing must climb
Avg price
Good£12.26avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay62%top-5 click share — leaders hold, buyers still browse
Price range
Okay£4.29–£21.15cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad£97K£97K/yr · 79K searches
Growth
Bad-12.5%90-day search growth — must beat 0% to launch
Brand share
Bad99%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, isotonic powder is a £97K/yr Amazon United Kingdom market (79K searches/yr). The top 5 brands hold 99% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Skip it — 43/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
isotonic powder market data
- Units sold / yr
- 8K–10K
- avg 250–500/product
- Revenue / yr
- £98K–£123K
- units × avg price
- Conversion rate
- 10.1%
- Avg BSR
- #59
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 95%
- Out of stock
- 3.7%
- Avg brand age
- 48 months
- Avg seller age
- 164 days
Competition & brand share
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.Brands
6 flat
Sellers
43
Top-5 brand share
99%
Top 20: 100%
Top-5 click share
62%
Top 20: 100%
Open market
0%
- FAST&UP57%
- Science in Sport36%
- Powerbar3%
- Optimum Nutrition2%
- HIGH52%
- Precision Hydration1%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -12.5% search growth over the last 90 days.Peak months: Aug, Sep, Oct · busiest ÷ quietest = 9.7×
Top isotonic powder search terms
- fast and up13K/yr
- isotonic powder9K/yr
- fast and up reload electrolytes12K/yr
- sis electrolyte powder11K/yr
- fast up electrolytes10K/yr
- fast up4K/yr
- sis carbohydrate powder3K/yr
- sis go electrolyte powder5K/yr
- fast&up3K/yr
- sis powder3K/yr
Top isotonic powder 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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Fast&Up Reload Energising Electrolyte Drink - Variety Pack - 80 Effervescent Hydration Tablets - Added Vitamin C & B12 - Vegan
FAST&UP£12.694.3★546 rev
Science In Sport GO Electrolyte Powder Energy Drinks High Carbohydrates and Sodium Lemon and Lime Flavour 32 Servings Per 1.6kg
Science in Sport£20.774.6★1,550 rev
Fast&Up Reload Energising Electrolyte Drink - Mixed Berry Flavour - 80 Effervescent Hydration Tablets - Added Vitamin C & B12 - Vegan
FAST&UP£13.384.5★2,461 rev
Science In Sport GO Electrolyte Powder Energy Drinks High Carbohydrates and Sodium Blackcurrant Flavour 32 Servings Per 1.6kg
Science in Sport£21.154.4★855 rev
Fast&Up Reload - Energising Electrolyte Drink - Mixed Berry Flavour - 20 Effervescent Hydration Tablets - Added Vitamin C & B12 - Vegan
FAST&UP£4.294.5★2,461 rev
Newest
by launch date
Fast&Up Reload Zero Electrolyte Tablets | Zero Sugar & Calories | Summer Fruits Flavour | 100 Effervescent Tablets with Vitamin C & B12 | Instant Hydration & Energy
FAST&UP£11.71113 rev
Fast&Up Reload Zero Electrolyte Tablets | Zero Sugar & Calories | Lemon & Lime Flavour | 100 Effervescent Tablets with Vitamin C & B12 | Instant Hydration & Energy
FAST&UP£13.2551 rev
Fast&Up Reload Zero Electrolyte Tablets | Zero Sugar & Calories | Summer Fruits Flavour | 25 Effervescent Tablets with Vitamin C & B12 | Instant Hydration & Energy
FAST&UP£6.08113 rev
Optimum Nutrition Electrolyte Powder Forest Berries Ready-to-Mix Formula Sodium Magnesium Potassium Food Supplement for Workouts and Intense Training 264 g 33 Servings
Optimum Nutrition£6.71688 rev
Science in Sport Hydro+ Electrolytes Powder Sachets with 5 Essential Electrolytes and Added Vitamins C B6 and B12 for Hydration Drink | Berry Pack of 20 Sachets
Science in Sport£18.19135 rev
Trending
90-day click momentum
Science In Sport GO Electrolyte Powder Energy Drinks High Carbohydrates and Sodium Blackcurrant Flavour 12 Servings Per 500 g
Science in Sport£10.654.4★
Fast&Up Reload Energising Electrolyte Drink - Variety Pack - 80 Effervescent Hydration Tablets - Added Vitamin C & B12 - Vegan
FAST&UP£12.694.3★
Optimum Nutrition Electrolyte Powder Forest Berries Ready-to-Mix Formula Sodium Magnesium Potassium Food Supplement for Workouts and Intense Training 264 g 33 Servings
Optimum Nutrition£6.714.1★
Fast&Up Reload Zero Electrolyte Tablets | Zero Sugar & Calories | Summer Fruits Flavour | 100 Effervescent Tablets with Vitamin C & B12 | Instant Hydration & Energy
FAST&UP£11.714.7★
Powerbar Isoactive (600g) Orange - Energy & Endurance - Electrolytes
Powerbar£8.804.4★
What buyers say about isotonic powder
What buyers praise and complain about, mined from review topics.What buyers love
“Love the taste very refreshing”
“Great flavour”
“Best performance brand there is”
“Excellent value for money”
“Good for hydration”
“Mixes well and taste nice”
“do help with your energy”
“Easy to use”
“Dose the job”
“not overly sweet”
What buyers complain about
“Gross taste”
“Weak flavour”
“Not dissolving”
“Doesnt taste like salt like the other brand I bought”
“I don't like overly sugary drinks”
“Didnt really notice much difference when using them”
“A little on the expensive side”
“Garbage”
“it does contain a lot of sugar”
“Really horrible to mix”
Top return reasons
Common questions
- Is isotonic powder profitable to sell on Amazon United Kingdom?
- The niche generates £97K/yr across 19 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -12.5%. Flapen's verdict: Skip it (43/100).
- How competitive is the isotonic powder niche?
- 6 brands and 43 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 99% of demand.
- What do buyers complain about in isotonic powder?
- Top complaints mined from reviews: Taste-Overall, Flavor, Solubility. The return rate is 0.0%.
- When does demand for isotonic powder peak?
- Demand peaks in Aug–Sep–Oct; the busiest month runs 9.7× the quietest.
- What does it cost to enter the isotonic powder niche?
- Listings span £4.29–£21.15; the average listing price is £12.26 (sweet spot $15–$100). The average incumbent carries 871 reviews — the moat a new listing must climb.