wheywise_logoWheyWise
Compare All ProteinSearch protein powders by price
Browse all

By type

Whey ConcentrateMost popular and affordableWhey IsolateHigh protein, low lactoseVegan ProteinPlant-based options ranked by valueCaseinSlow-release overnight proteinMass GainerHigh-calorie bulking powdersClear WheyLight, juice-style protein drinks

By goal

Protein PicksTop 3 picks per goal: cheapest, vegan, isolate, bulking, tasteCheapest OverallLowest cost per 25g of proteinBest for Weight LossHigh protein, low calorie options

Brand vs Brand

Myprotein vs BulkValue, range and quality comparedON vs MyproteinPremium vs budget head-to-headMyprotein vs Protein WorksImpact Whey vs Whey 80 on priceView all comparisons →

Savings

Deals & Discount CodesLive codes and price drops
Live
Compare All SupplementsCreatine, pre-workout, recovery and aminos
Browse all

By category

CreatineMonohydrate and HCL, ranked by cost per 5gPre-workoutStim and stim-free formulasPost-workoutRecovery blends with protein + carbs + EAAsBCAAs & EAAsAmino acid formulas by leucine content
All VitaminsMultivitamins, omega 3, probiotics and more
Browse all

By category

MultivitaminsDaily essentials in a single capsuleBones & JointsCurcumin, magnesium, calcium supportGut & DigestionProbiotics, debloat and detox formulasSleep & StressAshwagandha, magnesium glycinate, nootropicsBrain & EnergyB12, choline, nootropic blendsWomen's HealthPMS, menopause and pregnancy supportImmunityVitamin D3, iron and vitamin COmega 3Algae-based DHA + EPA, no fishEye HealthLutein, zeaxanthin, screen-friendly
Protein FinderAnswer 5 questions, get your matched picksProtein CalculatorFind your optimal daily intakeProtein Comparison ToolCompare any two products side by side
BlogGuides, price analysis and brand reviewsProtein ReviewsSide-by-side protein comparisonsSupplement ReviewsCreatine, pre-workout and recovery head-to-headsVitamin ReviewsMultivitamins, sleep, gut and immunity comparedFAQCommon questions answered
wheywise_logo

WheyWise compares protein powder prices across the UK so you can see every bag side by side and buy on facts, not whatever shows up first on Google. Updated weekly from 85+ retailers.

CompareCompare Protein PricesWhey ConcentrateWhey IsolateVeganCaseinMass Gainer
DealsBest Deals
CompanyBlogFAQContactPrivacyAffiliate DisclosureInstagram

© 2026 WheyWise. Prices updated weekly. We earn a small commission if you buy through our links, at no extra cost to you.

Reflex Nutrition

Reflex Nutrition UK: Micellar & One Whey Range

Every Reflex Nutrition protein product tracked, ranked by cost per 25g protein. Live UK pricing across stocking retailers, updated weekly.

16 products tracked·98+ retailers·Weekly updates
Cheapest right now·top 4 of 16
#1Reflex Nutrition Instant Whey Pro
Reflex Nutrition
Instant Whey Pro
£0.64/ 25g
#2Reflex Nutrition One Stop Xtreme Powder
Reflex Nutrition
One Stop Xtreme Powder
£0.71/ 25g
#3Reflex Nutrition Micro Whey Ultra
Reflex Nutrition
Micro Whey Ultra
£0.76/ 25g
#4Reflex Nutrition Instant Mass Heavyweight
Reflex Nutrition
Instant Mass Heavyweight
£0.81/ 25g
Reflex Nutrition

Every product, one place.

Back to all protein
Showing 16 reflex nutrition products
Quick filters

Is Reflex Nutrition a good brand?

Reflex Nutrition is a quality-first British brand known for Micellar Whey (an undenatured whey and casein blend), One Whey and Native Whey. It adds Digezyme digestive enzymes to several products and runs batches through informed testing, which is why it sits at the mid-to-premium end rather than the budget bracket. WheyWise tracks 10 Reflex products. The cheapest is £0.71 per 25g of protein on One Stop Xtreme Powder 4.35kg, ranging up to £6.13. Worth it if ingredient quality and mixability matter more to you than the lowest possible price.

CHEAPESTReflex Nutrition Instant Whey Pro

Reflex Nutrition

Instant Whey Pro

Whey concentrate
89 bought·Vanilla · 2.2kg
Protein
20g
Kcal
86
Carbs
0.8g
Clean
67
£0.64per 25g protein
£44.95 bag·1 retailer
View deal
CHEAPESTReflex Nutrition Instant Whey Pro
Reflex Nutrition

Instant Whey Pro

Whey concentrate2.2kg
89 bought this week
Protein
20g
Kcal
86
Carbs
0.8g
Clean
67
£0.64per 25g protein
£44.95 bag·1 retailer
View deal
BULK GAINSReflex Nutrition One Stop Xtreme Powder

Reflex Nutrition

One Stop Xtreme Powder

Mass gainer
99 bought·One Stop Xtreme Serious All In One Bcaas 5000mg Creatine Muscle Building Strawberries & Cream · 4.35kg
Protein
11.3g
Kcal
100
Carbs
8.8g
Clean
45
£0.71per 25g protein
£55.36 bag·1 retailer
View deal
BULK GAINSReflex Nutrition One Stop Xtreme Powder
Reflex Nutrition

One Stop Xtreme Powder

Mass gainer4.35kg
99 bought this week
Protein
11.3g
Kcal
100
Carbs
8.8g
Clean
45
£0.71per 25g protein
£55.36 bag·1 retailer
View deal
CHEAPESTReflex Nutrition Micro Whey Ultra

Reflex Nutrition

Micro Whey Ultra

Whey isolate
81 bought·Amino Acids No Added Sugar For Pre & Post Chocolate · 2kg
Protein
20.8g
Kcal
83
Carbs
0.5g
Clean
85
£0.76per 25g protein
£50.23 bag·1 retailer
View deal
CHEAPEST● TrendingReflex Nutrition Micro Whey Ultra
Reflex Nutrition

Micro Whey Ultra

Whey isolate2kg
81 bought this week
Protein
20.8g
Kcal
83
Carbs
0.5g
Clean
85
£0.76per 25g protein
£50.23 bag·1 retailer
View deal
Reflex Nutrition Instant Mass Heavyweight

Reflex Nutrition

Instant Mass Heavyweight

Mass gainer
Cookies & Cream · 5.4kg
Protein
5g
Kcal
93
Carbs
17g
Clean
46
£0.81per 25g protein
£34.95 bag·1 retailer
View deal
Reflex Nutrition Instant Mass Heavyweight
Reflex Nutrition

Instant Mass Heavyweight

Mass gainer5.4kg
Protein
5g
Kcal
93
Carbs
17g
Clean
46
£0.81per 25g protein
£34.95 bag·1 retailer
View deal
CHEAPESTReflex Nutrition Micellar Casein Powder

Reflex Nutrition

Micellar Casein Powder

Casein
69 bought·Chocolate Perfection · 1.8kg
Protein
20g
Kcal
93
Carbs
1g
Clean
78
£0.89per 25g protein
£50.99 bag·1 retailer
View deal
CHEAPESTReflex Nutrition Micellar Casein Powder
Reflex Nutrition

Micellar Casein Powder

Casein1.8kg
69 bought this week
Protein
20g
Kcal
93
Carbs
1g
Clean
78
£0.89per 25g protein
£50.99 bag·1 retailer
View deal
Reflex Nutrition Instant Mass Heavyweight 5.4kg Powder

Reflex Nutrition

Instant Mass Heavyweight 5.4kg Powder

Mass gainer
Salted Caramel · 5.4kg
Protein
5g
Kcal
93
Carbs
17g
Clean
49
£1.00per 25g protein
£42.99 bag·1 retailer
View deal
● TrendingReflex Nutrition Instant Mass Heavyweight 5.4kg Powder
Reflex Nutrition

Instant Mass Heavyweight 5.4kg Powder

Mass gainer5.4kg
Protein
5g
Kcal
93
Carbs
17g
Clean
49
£1.00per 25g protein
£42.99 bag·1 retailer
View deal
HIGHEST PROTEIN %Reflex Nutrition Growth Matrix 1.8kg Powder

Reflex Nutrition

Growth Matrix 1.8kg Powder

Mass gainer
Smooth fruit · 1.8kg
Protein
13.8g
Kcal
95
Carbs
6.3g
Clean
45
£1.06per 25g protein
£41.99 bag·1 retailer
View deal
HIGHEST PROTEIN %Reflex Nutrition Growth Matrix 1.8kg Powder
Reflex Nutrition

Growth Matrix 1.8kg Powder

Mass gainer1.8kg
Protein
13.8g
Kcal
95
Carbs
6.3g
Clean
45
£1.06per 25g protein
£41.99 bag·1 retailer
View deal
CHEAPESTReflex Nutrition Plant-Based Protein

Reflex Nutrition

Plant-Based Protein

Vegan
85 bought·Banana · 600g
Protein
17.5g
Kcal
91
Carbs
1.5g
Clean
88
£1.08per 25g protein
£18.19 bag·1 retailer
View deal
CHEAPESTReflex Nutrition Plant-Based Protein
Reflex Nutrition

Plant-Based Protein

Vegan600g
85 bought this week
Protein
17.5g
Kcal
91
Carbs
1.5g
Clean
88
£1.08per 25g protein
£18.19 bag·1 retailer
View deal
CLEAN LABEL
REFLEX N

Reflex Nutrition

Plant Based Protein 600g Cacao & Caramel

Vegan
Based Cacao &038 Caramel · 600g
Protein
17.5g
Kcal
91
Carbs
1.5g
Clean
92
£1.14per 25g protein
£19.20 bag·1 retailer
View deal
CLEAN LABEL
REFLEX N
Reflex Nutrition

Plant Based Protein 600g Cacao & Caramel

Vegan600g
Protein
17.5g
Kcal
91
Carbs
1.5g
Clean
92
£1.14per 25g protein
£19.20 bag·1 retailer
View deal
Reflex Nutrition Isolate Pro

Reflex Nutrition

Isolate Pro

Whey isolate
Vanilla · 1.8kg
Protein
20.8g
Kcal
86
Carbs
0.8g
Clean
84
£1.15per 25g protein
£68.99 bag·1 retailer
View deal
● TrendingReflex Nutrition Isolate Pro
Reflex Nutrition

Isolate Pro

Whey isolate1.8kg
Protein
20.8g
Kcal
86
Carbs
0.8g
Clean
84
£1.15per 25g protein
£68.99 bag·1 retailer
View deal
Reflex Nutrition Mass Heavyweight 5.4kg

Reflex Nutrition

Mass Heavyweight 5.4kg

Mass gainer
Vanilla · 5.4kg
Protein
4.1g
Kcal
100
Carbs
16.3g
Clean
51
£1.26per 25g protein
£44.95 bag·1 retailer
View deal
Reflex Nutrition Mass Heavyweight 5.4kg
Reflex Nutrition

Mass Heavyweight 5.4kg

Mass gainer5.4kg
Protein
4.1g
Kcal
100
Carbs
16.3g
Clean
51
£1.26per 25g protein
£44.95 bag·1 retailer
View deal
Reflex Nutrition XFT Rest & Maintain 500g

Reflex Nutrition

XFT Rest & Maintain 500g

Whey isolate
Chocolate · 500g
Protein
16.3g
Kcal
95
Carbs
3.8g
Clean
83
£1.31per 25g protein
£16.99 bag·1 retailer
View deal
Reflex Nutrition XFT Rest & Maintain 500g
Reflex Nutrition

XFT Rest & Maintain 500g

Whey isolate500g
Protein
16.3g
Kcal
95
Carbs
3.8g
Clean
83
£1.31per 25g protein
£16.99 bag·1 retailer
View deal
Reflex Nutrition 100% Whey

Reflex Nutrition

100% Whey

Vegan
Vanilla · 2.2kg
Protein
5g
Kcal
27
Carbs
1.5g
Clean
89
£2.55per 25g protein
£44.95 bag·1 retailer
View deal
● TrendingReflex Nutrition 100% Whey
Reflex Nutrition

100% Whey

Vegan2.2kg
Protein
5g
Kcal
27
Carbs
1.5g
Clean
89
£2.55per 25g protein
£44.95 bag·1 retailer
View deal
Reflex Nutrition 100% Native Whey 1.8kg

Reflex Nutrition

100% Native Whey 1.8kg

Whey concentrate
Chocolate Perfection · 1.8kg
Protein
5g
Kcal
27
Carbs
1.5g
Clean
72
£3.05per 25g protein
£43.99 bag·1 retailer
View deal
● TrendingReflex Nutrition 100% Native Whey 1.8kg
Reflex Nutrition

100% Native Whey 1.8kg

Whey concentrate1.8kg
Protein
5g
Kcal
27
Carbs
1.5g
Clean
72
£3.05per 25g protein
£43.99 bag·1 retailer
View deal
CHEAPESTReflex Nutrition Clear Whey Isolate

Reflex Nutrition

Clear Whey Isolate

Clear whey
83 bought·Mango & Passionfruit · 510g
Protein
5g
Kcal
27
Carbs
1.5g
Clean
79
£5.51per 25g protein
£22.49 bag·1 retailer
View deal
CHEAPEST● TrendingReflex Nutrition Clear Whey Isolate
Reflex Nutrition

Clear Whey Isolate

Clear whey510g
83 bought this week
Protein
5g
Kcal
27
Carbs
1.5g
Clean
79
£5.51per 25g protein
£22.49 bag·1 retailer
View deal
Reflex Nutrition Clear Whey

Reflex Nutrition

Clear Whey

Clear whey
Tropical · 510g
Protein
5g
Kcal
27
Carbs
1.5g
Clean
78
£6.13per 25g protein
£24.99 bag·1 retailer
View deal
● TrendingReflex Nutrition Clear Whey
Reflex Nutrition

Clear Whey

Clear whey510g
Protein
5g
Kcal
27
Carbs
1.5g
Clean
78
£6.13per 25g protein
£24.99 bag·1 retailer
View deal
Browse All Reflex Nutrition Products (16)
  • Reflex Nutrition - 100% Native Whey 1.8kg
  • Reflex Nutrition - 100% Whey
  • Reflex Nutrition - Clear Whey
  • Reflex Nutrition - Clear Whey Isolate
  • Reflex Nutrition - Growth Matrix 1.8kg Powder
  • Reflex Nutrition - Instant Mass Heavyweight
  • Reflex Nutrition - Instant Mass Heavyweight 5.4kg Powder
  • Reflex Nutrition - Instant Whey Pro
  • Reflex Nutrition - Isolate Pro
  • Reflex Nutrition - Mass Heavyweight 5.4kg
  • Reflex Nutrition - Micellar Casein Powder
  • Reflex Nutrition - Micro Whey Ultra
  • Reflex Nutrition - One Stop Xtreme Powder
  • Reflex Nutrition - Plant Based Protein 600g Cacao & Caramel
  • Reflex Nutrition - Plant-Based Protein
  • Reflex Nutrition - XFT Rest & Maintain 500g

About Reflex Nutrition

Live UK prices on every Reflex Nutrition product we track, ranked by cost per 25g of protein. Updated weekly.

Related

Cheapest OverallWhey ConcentrateWhey IsolateVegan

Frequently Asked Questions

How much does Reflex Nutrition protein cost in the UK?

Reflex currently ranges from £0.71 to £6.13 per 25g of protein across UK retailers we track, with One Stop Xtreme Powder 4.35kg the cheapest right now. Updated weekly.

Is Reflex Micellar Whey a slow or fast protein?

Micellar Whey blends whey (fast) with micellar casein (slow), so it releases amino acids over a longer window than a pure whey. That makes it a flexible all-day option rather than a strictly post-workout powder.

Is Reflex Nutrition worth the extra cost?

Reflex prices above budget concentrate because of the added enzymes, batch testing and blend quality. If you want the lowest cost per gram of protein, plain whey concentrate is cheaper; if mixability, digestion and tested quality matter to you, Reflex earns its place. The table above shows exactly how much extra you pay per 25g.

Compare Other Protein Brands

Applied NutritionMyproteinBulkOptimum NutritionIsopurePhD NutritionGrenadeProtein WorksCNP ProfessionalSci-MX NutritionKineticaAll Brands
Shop by goal

Pick a target, see the shortlist.

Cheapest Overall

Lowest £/25g across every protein type

View comparison

Best for Weight Loss

Low-carb, low-sugar picks by £/25g

View comparison

Clear Whey

Lighter, juice-style whey isolates

View comparison
Brand battles

Two brands, one clear winner.

Myprotein vs Bulk

The UK's two biggest DTC brands, head-to-head

View comparison

ON vs Myprotein

Premium global vs budget UK favourite

View comparison

Myprotein vs Protein Works

Impact Whey vs Whey 80, cheapest per 25g

View comparison
Power users
Advanced comparison: every product, filtered

Dense table view with every product, full filter sidebar, and no editorial surfaces.

Tracking 98 UK retailers
Optimum NutritionApplied NutritionProtein WorksGrenadeUSNReflex NutritionBulkMyProteinFormHuelHolland & BarrettAmazonBootsTescoSainsbury’sMyveganMuscle FoodProtein DynamixPhDWarriorOptimum NutritionApplied NutritionProtein WorksGrenadeUSNReflex NutritionBulkMyProteinFormHuelHolland & BarrettAmazonBootsTescoSainsbury’sMyveganMuscle FoodProtein DynamixPhDWarrior
Methodology

How we rank every bag.

Independent, transparent, and updated weekly. Here's what goes into each score.

01
Cost normalised to £/25g
Every bag divided by its true protein weight, so you see the real cost of a scoop across any size or brand.
02
Protein quality, not just %
Protein %, leucine and digestibility feed the Performance score. A 90% isolate and a 90% vegan blend are not the same.
03
Clean-label audit
Ingredient count, artificial sweeteners, added sugars, third-party certifications. 0 to 100 score.
04
Social and review signals
Weekly purchase volume and weighted review scores surface what people actually re-buy, not just what ranks on search.
16 results