Zac Perna built his physique on EHPlabs - IsoPept Zero whey isolate, Creatine, BeyondBCAA EAAs and OxyShred for morning energy. EHPlabs ships from Australia with limited UK stock. Here are the UK alternatives that match each slot in his stack, in stock from UK warehouses with next-day delivery.
Kevin, founder of WheyWise
Closest match
Applied Nutrition
1.8kg bag
Closest UK match to EHPlabs IsoPept Zero on macros - 90g protein per 100g, sub-1g fat and sugar, Informed Sport certified at an ISO 17025 accredited lab, and lactose-friendly. Stocked next-day from Amazon UK, Bulk and Holland and Barrett.
Buy ISO XP 1.8kg →Live price across UK retailersSee all UK alternatives in the live comparison table →
Best value
Bulk
1kg bag
84g protein per 100g and the lowest cost per 25g of protein in the UK isolate tier. Unflavoured or vanilla 2.5kg bag from Bulk direct routinely undercuts every dedicated isolate on Amazon UK.
Buy Pure Whey Isolate →Live price across UK retailersor buy direct from Bulk →See all UK alternatives in the live comparison table →
Cheapest on sale
MyProtein
1kg bag
MyProtein's mainline isolate at 76g protein per 100g. Off-Impact-Week pricing is mid-pack, but on sale it drops to the cheapest credible UK isolate per 25g of protein. Best approach: wait for Impact Week, buy 5kg, store dry.
Buy Impact Whey Isolate Powder →Live price across UK retailersor buy direct from MyProtein →See all UK alternatives in the live comparison table →Zac Perna is one of the most-followed fitness creators on the EHPlabs roster, and his personal stack is the recipe a lot of UK lifters try to copy. The problem is EHPlabs ships from Australia with no UK warehouse, no major UK retailer distribution, and shipping plus customs that can add 30 to 50 percent to the bag price. This guide pairs each slot in his stated stack with the closest UK equivalent you can have on the doorstep tomorrow.
Zac Perna's stated stack is EHPlabs IsoPept Zero (whey isolate), EHPlabs Creatine at 5g daily, EHPlabs BeyondBCAA, and EHPlabs OxyShred as a morning thermogenic. The closest UK alternatives are Applied Nutrition ISO-XP (matches IsoPept Zero on protein density and Informed Sport certification), MyProtein Impact Creatine (creatine monohydrate is creatine monohydrate, the brand premium does not change the molecule), Applied Nutrition Amino Fuel EAA (the BeyondBCAA equivalent), and Applied Nutrition ABE Pre Workout (matches OxyShred's 200mg caffeine and adds clinical-dose beta-alanine plus citrulline). Total monthly cost runs around £55 to £65 from a UK warehouse versus £90 to £110 importing the EHPlabs originals.
Zac has been an EHPlabs ambassador since 2022 and shares the discount code ZAC10 on EHPlabs purchases. Across his Instagram, YouTube, and EHPlabs ambassador page, the four products that recur in his content are:
Two notes on framing. First, this is what he has stated publicly, not what we observed. Second, no supplement made the physique - the training and the nutrition did. The stack supports the work; it does not replace it.
EHPlabs has no UK warehouse and no major UK retailer carrying the full range. Buying direct from ehplabs.com to a UK address means:
For four supplements bought monthly that is real friction. The UK shelf in 2026 has Informed Sport whey isolate at 90g protein per 100g (matching IsoPept Zero), Creapure and standard monohydrate creatine at a fraction of the EHPlabs price, EAA blends with the same amino spectrum as BeyondBCAA, and dose-precise pre-workouts that deliver the OxyShred caffeine hit alongside performance ingredients OxyShred does not include. Every recommendation below is in stock from a UK warehouse with next-day or 48-hour delivery.
IsoPept Zero is a hydrolysed whey isolate at roughly 78g protein per 100g, sub-1g sugar, sub-1g fat, with added digestive enzymes. The UK isolate shelf has three picks that get you within touching distance on macros at a meaningfully lower cost per 25g of protein.
90g protein per 100g, under 1g fat, under 1g sugar, lactose-friendly, and Informed Sport certified for tested athletes. Higher protein density than IsoPept Zero on the spec sheet and a near-identical mouthfeel post-mix. Available across UK retailers including direct, Bulk, Amazon UK, and Holland and Barrett.
Closest Match
1.8kg bag
Applied Nutrition ISO-XP 1.8kg delivers 90g protein per 100g with sub-1g fat and sugar - one of the cleanest macro profiles on UK shelves. Informed Sport certified and lactose-friendly. The 1.8kg bag is the value sweet spot at roughly 60 servings.
Buy ISO XP 1.8kg →Live price across UK retailersClosest Match
Pros
Cons
Protein makes up 90%
of this 25g scoop · 93 kcal total
84g protein per 100g, transparent label, and the lowest cost per 25g of protein in the UK isolate tier. The 2.5kg bag in unflavoured or vanilla consistently sits under £1.30 per 25g of protein on Bulk's own site, undercutting almost every dedicated isolate on Amazon UK.
Best Value
1kg bag
High-purity whey isolate from Bulk with 27g protein per 30g scoop. Very low fat and lactose, ideal for calorie-conscious or lactose-sensitive buyers.
Buy Pure Whey Isolate →Live price across UK retailersor buy direct from Bulk →Best Value
Pros
Cons
Protein makes up 84%
of this 30g scoop · 105 kcal total
76g protein per 100g - lower than ISO-XP or Bulk - but drops to under 90p per 25g of protein on Impact Week codes. Best approach: wait for Impact Week, buy in bulk, store dry. Off-sale it is mid-pack on value.
1kg bag
MyProtein Impact Whey Isolate is the volume-leader UK isolate at 76g protein per 100g. Off-sale pricing is mid-pack, but on Impact Week it becomes the cheapest credible isolate at sub-90p per 25g protein.
Buy Impact Whey Isolate Powder →Live price across UK retailersor buy direct from MyProtein →Pros
Cons
Protein makes up 79%
of this 30g scoop · 105 kcal total
Creatine monohydrate is the most evidence-backed supplement in any lifter's stack and the one where brand premium delivers the least. The molecule is identical across brands. 5g per day, every day, no loading required for long-term saturation.
Around 17p per 5g serve on the 1kg tub, dropping under 12p on Impact Week. The 250g and 500g tubs are convenient sizes for testing flavour before committing to a year's supply. Pure micronised creatine monohydrate, no fillers.
Best Value
250g bag
Budget creatine monohydrate from MyProtein. 3g per scoop, cheapest per gram during Impact Week sales. No third-party certification, but pharmaceutical-grade purity.
Buy Impact Creatine →Live price across UK retailersor buy direct from retailer →Best Value
Pros
Cons
The widest UK retail availability of any creatine - sold in supermarkets, Holland and Barrett, Amazon UK, and dedicated gym shops. Higher price per gram than MyProtein but useful if you want to grab a tub on the high street without waiting for delivery.
317g bag
5g Informed Choice certified creatine monohydrate from Optimum Nutrition. The default mainstream pick: clean mixing, widely stocked, banned-substance tested.
Buy Creatine Powder →Live price across UK retailersPros
Cons
BeyondBCAA is a branched-chain amino acid blend with added electrolytes. Modern sports science has largely moved on from pure BCAAs to full essential amino acid (EAA) profiles, which include the leucine, isoleucine and valine of BCAA plus the other six essentials your body needs for muscle protein synthesis. The two UK picks below are EAA blends rather than pure BCAAs.
11g of essential amino acids per serve including 4g of leucine, with vitamin B6, vitamin C and electrolytes. Sold in 390g tubs around 25 to 30 serves. Informed Sport certified for tested athletes. Closest like-for-like to BeyondBCAA on the amino content with a broader amino spectrum.
Informed Sport
390g bag
Applied Nutrition Amino Fuel EAA delivers 11g essential aminos including 4g leucine, plus electrolytes and vitamins. Informed Sport certified - the right pick for tested athletes who want full EAA coverage over a BCAA-only blend.
Buy Amino Fuel EAA 390g →Live price across UK retailersInformed Sport
Pros
Cons
A simpler 8.5g EAA blend per serve with 4g of BCAAs in a 2:1:1 ratio. Lower price point than Amino Fuel and a wider flavour range, including the limited-edition Robinsons and Sour Patch Kids collabs that the EHPlabs ranges do not match.
Best Value
500g bag
MyProtein Impact EAA is the value pick in the UK EAA category. 8.5g essential aminos per serve with the BCAA 2:1:1 ratio, 20+ flavours, and Impact Week pricing under 20p per serve. The right pick when budget and flavour variety matter more than third-party certification.
Buy Impact EAA →Live price across UK retailersor buy direct from retailer →Best Value
Pros
Cons
OxyShred sits in the thermogenic fat-burner category but its main job in Zac's stack is the morning caffeine kick before fasted cardio and weights. A dose-precise pre-workout delivers that same hit alongside performance ingredients (beta-alanine, citrulline) that OxyShred does not include, at a comparable serving size.
200mg caffeine, 3.2g beta-alanine, 6g citrulline malate, and 2g creatine monohydrate per scoop on a transparent label. The 375g Informed Sport version is the tested-athlete pick. Comparable caffeine to OxyShred at roughly half the cost per serve when bought from a UK warehouse.
Best Performance
315g bag
Applied Nutrition ABE is one of the most consistently well-dosed UK pre-workouts. 200mg caffeine, 3.2g beta-alanine, 6g citrulline malate on a transparent label.
Buy ABE Pre Workout 315g →Live price across UK retailersBest Performance
Pros
Cons
200mg caffeine per scoop alongside BCAAs, arginine and beetroot extract. Wins UK Trustpilot taste rankings consistently. If ABE's flavour range does not click for you, this is the next step.
Best Flavour
232g bag
Grenade .50 Calibre pre-workout with 200mg caffeine per serving. Best-in-class flavours, especially Killa Cola. Long ingredient list but sub-clinical doses on several actives.
Buy 50 Calibre Preworkout →Live price across UK retailersBest Flavour
Pros
Cons
Running the four-slot stack monthly at typical training volumes (1 scoop isolate, 5g creatine, 1 scoop EAA, 1 scoop pre-workout per training day, 4 sessions per week):
Total UK alternative stack: approximately £55 to £65 per month. The equivalent EHPlabs stack imported to the UK runs £90 to £110 per month before any customs charge. Same training, same physique outcome, 30 to 50 percent less spend.
Three honest caveats on the swap, because the recommendations would not survive a Reddit thread without them:
Zac has historically been associated with Gymshark on the apparel side and built much of his early following through Gymshark content. His current dedicated supplement partnership is with EHPlabs (since 2022), and the discount code ZAC10 applies to EHPlabs purchases. Treat the Gymshark connection as apparel-era; the supplement stack is EHPlabs-led.
5g daily, taken consistently, no loading phase. This matches the standard maintenance dose recommended in the creatine literature. For more on dosing see how much creatine per day.
You can, via ehplabs.com direct shipping, but lead time is 7 to 14 days, shipping cost is £10 to £20, and orders over the £135 customs threshold can attract VAT and handling fees on top. For four products bought monthly the UK alternatives end up cheaper on a per-serve basis even before factoring in shipping.
OxyShred is marketed as a thermogenic fat-burner. The functional driver in the formula is the caffeine, which delivers a wakefulness and perceived-exertion boost similar to a strong coffee or a dose-precise pre-workout. The thermogenic ingredients (acetyl L-carnitine, garcinia, green coffee bean) carry weak evidence for meaningful fat loss in trained adults eating in a deficit.
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