Descripción
Complete x4 Whey Protein Sachets – 4 Isolated & Hydrolyzed Proteins, 7 Flavours, 1 Box
The most convenient way to experience SCN™’s most advanced protein. Each box of sobres de proteína de suero gives you seven 24 g single-dose servings of Complete x4 – Isolac® whey protein isolate, beef protein isolate, beef protein hydrolysate and instantized egg white protein with DigeZyme® and lactase – one sachet of every flavour we make. Try them all, travel light, and never miss your post-training protein again.
- 7 × 24 g sachets – one of each flavour
- 4 protein types from 3 animal sources
- 100% isolated & hydrolyzed forms – 90% protein
- DigeZyme® multi-enzyme complex + lactase
- No added sugar, virtually fat-free, keto & diet friendly
- Fits in a jersey pocket, gym bag or carry-on
Which athlete are you?
Complete x4 was engineered first for endurance athletes – the people who break down the most muscle and have the least time to rebuild it. But the same four-protein blend serves every goal below. Find yours.
Endurance athletes – runners, cyclists, triathletes, swimmers
After a long session your muscles need amino acids fast and for several hours. Complete x4 pairs rapidly absorbed hydrolyzed and isolated proteins with medium-release egg white, so recovery starts in minutes and keeps going. One sachet in the car park after the ride is the habit that separates athletes who adapt from those who just get tired.
Strength & physique athletes
Around 90% protein, naturally rich in leucine, EAAs and BCAAs, with nothing you don’t need – no sugar, almost no fat. The dose that fits a strict macro plan and a cutting phase as well as a build.
Wellbeing, healthy ageing & brain health
From our thirties onward we lose muscle unless we eat enough high-quality protein. A sachet of Complete x4 is a clean, complete protein top-up for busy days, low-appetite days and anyone who wants to stay strong and independent for decades.
Weight management & keto
Protein is the most satiating macronutrient. With no added sugar and virtually no fat or carbohydrate, a sachet gives you fullness and muscle protection without touching your daily carb or fat budget.
What’s in the box – all 7 flavours
Each box contains 7 sachets × 24 g, one sachet of every Complete x4 flavour:
Found your favourite? The full-size tub is here: Complete x4 Hydrolyzed Whey Protein Isolate blend.
Why 4 proteins from 3 sources beats a single whey
Most protein powders are one ingredient: whey concentrate. SCN™ took a different route. Complete x4 combines four protein types – whey isolate, beef isolate, beef hydrolysate and egg white isolate – chosen so that each one covers what the others cannot:
- Speed. Beef hydrolysate is enzymatically pre-digested into short peptides, so amino acids reach the blood within minutes of drinking.
- Leucine density. Isolac® whey isolate delivers the highest natural leucine content of any food protein – the amino acid that switches on muscle protein synthesis.
- Sustained release. Egg white protein digests at a medium rate, extending the amino acid supply for hours after the fast proteins have cleared.
- Amino acid breadth. Three different animal sources give a broader, more complete amino acid spectrum than any single source – including arginine-rich egg white and glycine/hydroxyproline-rich beef.
- Purity. Only isolated and hydrolyzed fractions are used – no concentrate – so the blend reaches around 90% protein with almost no lactose, sugar or fat.
- Digestibility. DigeZyme® (amylase, protease, lipase, lactase, cellulase) plus extra lactase breaks the proteins down efficiently so you absorb more and feel lighter.
Ingredient breakdown – everything in each 24 g sachet
Isolac® Whey Protein Isolate
Isolac® is a premium European whey protein isolate standardised to around 91% protein on a dry basis with only about 1% fat. Produced by gentle filtration rather than aggressive heat, it keeps the whey fractions intact and is cold-processed for maximum biological value. Whey isolate is naturally the richest food source of the branched-chain amino acids leucine, isoleucine and valine, and provides all nine essential amino acids in the proportions muscle tissue needs.
Because the lactose is removed during isolation, Isolac® is low-lactose and suitable for many people who cannot tolerate milk. It is non-GM, fully traceable to farm source, kosher and halal approved, and has a low glycaemic index.
| Isolac® features | Superior protein source · excellent biological value · rich in EAAs · naturally high in BCAAs (leucine, isoleucine, valine) · 100% natural · low lactose · low fat · low glycaemic index · kosher & halal · suitable for vegetarians · non-GM · fully traceable |
|---|---|
| Perfil nutricional | Protein 91% (dry basis) · Fat 1.0% |
Beef Protein Isolate & Beef Protein Hydrolysate
Complete x4 uses two forms of beef protein. The isolate is a concentrated, fat-free, cholesterol-free, lactose-free protein. The hydrolysate goes one step further: enzymes pre-digest the protein into di- and tri-peptides and free amino acids, which are absorbed through dedicated peptide transporters in the small intestine – faster than intact protein and without competing with other nutrients. That is why hydrolyzed proteins appear in the blood within minutes of consumption and why they are the recovery choice when the window after a hard session is short.
Beef protein is also naturally rich in glycine, proline and hydroxyproline, the amino acids that make up collagen – the structural protein of tendons, ligaments, cartilage and skin. For athletes who stress connective tissue daily, a protein that supplies these building blocks alongside the muscle-building amino acids is a meaningful advantage over whey alone. Beef protein is completely dairy-free.
Egg White Protein Isolate (instantized)
Egg white has long been the reference standard for protein quality – a complete amino acid profile, a perfect PDCAAS score of 1.0 and no lactose. SCN™ selected a spray-dried, instantized egg white protein that mixes easily and tastes clean. Egg white contains around 40 distinct proteins; ovalbumin makes up roughly 55% and ovotransferrin, an iron-binding protein with natural antimicrobial properties, is the second most abundant.
Its medium digestion rate is the key to the blend: once the hydrolyzed beef and whey isolate have delivered their fast hit, egg white keeps the amino acid supply steady for several hours, feeding the muscle in a more stable way. Egg white is also naturally high in arginina, the amino acid the body uses to produce nitric oxide, which supports healthy blood flow to working and recovering muscle, and in sulphur-containing amino acids (methionine, cysteine) that the body needs for glutathione, its master antioxidant.
DigeZyme® Multi-Enzyme Complex + Lactase
DigeZyme® is a clinically studied, branded blend of five digestive enzymes: amylase (breaks down starch), protease (breaks down protein), lipase (breaks down fat), lactase (breaks down milk sugar) and cellulase (breaks down plant fibre). Added to a protein powder it does two jobs: it helps the body split the proteins into absorbable peptides and amino acids more completely, and it reduces the heaviness, bloating and wind that many people feel with protein shakes. Extra lactase on top of the DigeZyme® lactase means that even the trace lactose left in the whey isolate is taken care of. DigeZyme® also has its own published evidence on exercise recovery – see the research section below.
Cocoa powder, natural flavour powders & sucralose
Each flavour is created with flavour powders (cocoa powder in the chocolate-based flavours, cookies & cream powder in Cookies & Cream, and so on) and sweetened with a small amount of sucralose – no added sugar, so the carbohydrate content stays close to zero and the sachets remain keto and low-calorie diet friendly.
The science behind Complete x4
Whey vs. slower proteins after exercise. A classic study compared whey hydrolysate, casein and soy after resistance exercise. Whey produced the largest and fastest rise in blood leucine and the greatest stimulation of muscle protein synthesis in the hours after training.
Tang JE et al. Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men. J Appl Physiol. 2009;107(3):987-92.
Beef protein isolate builds lean mass like whey. In an 8-week trial, trained adults taking beef protein isolate after training gained lean body mass comparable to the whey group and significantly more than placebo – confirming beef isolate as a legitimate, dairy-free performance protein.
Sharp MH et al. The effects of beef, chicken, or whey protein after workout on body composition and muscle performance. J Strength Cond Res. 2018;32(8):2233-2242.
Egg protein: the 20 g dose. The landmark dose-response study used egg protein to show that around 20 g of high-quality protein after resistance exercise maximally stimulates muscle protein synthesis in young men – with egg protein as the model complete protein.
Moore DR et al. Ingested protein dose response of muscle and albumin protein synthesis after resistance exercise in young men. Am J Clin Nutr. 2009;89(1):161-8.
Protein supplementation improves strength and muscle gains. A meta-analysis of 49 randomised trials (1,863 participants) found that adding protein to a training programme significantly increases strength and fat-free mass, with benefits up to roughly 1.6 g protein per kg body weight per day.
Morton RW et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength. Br J Sports Med. 2018;52(6):376-384.
Protein and endurance recovery. Reviews of protein intake in endurance athletes consistently report that 20–40 g of high-quality protein after prolonged exercise supports muscle repair, reduces markers of muscle damage and may improve next-day performance, especially during heavy training blocks.
Jäger R et al. International Society of Sports Nutrition Position Stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20.
DigeZyme® and delayed-onset muscle soreness (DOMS). In a double-blind, placebo-controlled trial, 20 healthy men performed standardised eccentric exercise and took either placebo or DigeZyme® (50 mg, three times daily) for 3 days. The enzyme group reported significantly less pain and tenderness on the McGill Pain Questionnaire, with a downward trend in the muscle-damage markers creatine kinase and lactate dehydrogenase.
Majeed M et al. Evaluation of the efficacy of a multi-enzyme complex (DigeZyme®) on delayed onset muscle soreness: a randomised, double-blind, placebo-controlled study. 2016. Source: digezyme.com
Protein and healthy ageing. Expert consensus (PROT-AGE) recommends that older adults consume 1.0–1.2 g protein per kg body weight daily, and more when physically active, to maintain muscle mass and function – a target most people miss without a convenient high-quality source.
Bauer J et al. Evidence-based recommendations for optimal dietary protein intake in older people: a position paper from the PROT-AGE Study Group. J Am Med Dir Assoc. 2013;14(8):542-59.
Benefits at a glance
- Rapid amino acid delivery from hydrolyzed beef and whey isolate – recovery starts within minutes
- Sustained supply from medium-release egg white protein – hours of coverage from one sachet
- Very high leucine, EAA and BCAA content to trigger muscle protein synthesis
- Supplies glycine, proline and hydroxyproline for tendons, ligaments and connective tissue
- Around 90% protein – no added sugar, virtually fat- and carb-free
- DigeZyme® + lactase for easy digestion and minimal bloating
- Low lactose – well tolerated by many people who struggle with regular whey
- Pre-measured 24 g dose: no scoop, no spillage, no guesswork
- Travel-, race- and gym-bag-friendly; perfect for trying every flavour before buying a tub
- Keto, low-calorie and weight-management friendly
- Supports muscle maintenance for active adults and healthy ageing
- Cold-processed, non-GM, fully traceable ingredients from SCN™
How to use your whey protein sachets
Standard: mix 1 sachet (24 g) into 250 ml of room-temperature water and drink immediately after training.
High-demand periods: during heavy training blocks, multi-day events or when protein needs are elevated, take one extra sachet about 1 hour before training to improve nitrogen balance during the session and limit muscle tissue damage.
Mixing tips: do not use very cold water and do not mix with milk – room-temperature water gives the smoothest result and the fastest absorption. Shake or stir for 10–15 seconds.
Pair it with: Pro Endurance Recovery after your longest sessions, or Anti-Catabolic Activa.TOR⁹ during cutting phases and intense blocks.
Product information
| Format | Box of 7 single-dose sachets × 24 g (168 g total) |
|---|---|
| Flavours | Choco Muffin · Vanilla Ice-Cream · Cookies & Cream · Milk Cream with Sweet Apple & Cinnamon · Banana, Caramel & Butter Biscuits · Strawberry Cheesecake & Butter Biscuits · White Chocolate with Hazelnuts & Walnuts – one sachet of each |
| Protein sources | Isolac® whey protein isolate · beef protein isolate · beef protein hydrolysate · egg white protein isolate (instantized) |
| Protein concentration | Approx. 90% – 100% isolated & hydrolyzed forms only |
| Digestive enzymes | DigeZyme® multi-enzyme complex (amylase, protease, lipase, lactase, cellulase) + added lactase |
| Sugar / fat | No added sugar · virtually fat-free · keto and diet friendly |
| Ingredientes | Complete x4 Protein Mix (Isolac® whey protein isolate powder, egg white protein isolate powder, beef protein isolate powder, beef protein hydrolyzed powder), cocoa powder (chocolate-based flavours), flavour powders (per flavour), DigeZyme® multi-enzyme complex (amylase, lactase, cellulase, lipase, protease), sweetener: sucralose. |
| Allergens | Contains milk (whey) and egg. Low lactose. Produced in a facility handling other allergens – see pack. |
| Full-size tub | Complete x4 – Hydrolyzed Whey Protein Isolate Blend |
Frequently asked questions
What are whey protein sachets and why would I choose them over a tub?
Whey protein sachets are pre-measured single servings of protein powder. Ours contain exactly one 24 g dose of Complete x4. Choose sachets to try all seven flavours before committing to a tub, to carry protein to races, training camps and trips without a tub, or simply for the convenience of no scoop and no mess.
Is Complete x4 pure whey?
No – and that’s the point. It is a four-protein blend: Isolac® whey protein isolate, beef protein isolate, beef protein hydrolysate and egg white protein isolate. The combination gives faster and longer-lasting amino acid delivery and a broader amino acid profile than whey alone.
Is it suitable if I’m lactose intolerant?
Whey isolate is very low in lactose, beef and egg proteins contain none, and the formula includes DigeZyme® and extra lactase. Many people with lactose sensitivity use it comfortably. It does still contain milk protein, so it is not suitable for a milk-protein allergy.
Is it keto and diet friendly?
Yes. There is no added sugar, almost no fat and only trace carbohydrate, so one sachet adds high-quality protein without affecting a ketogenic or calorie-controlled plan.
When is the best time to take it?
Immediately after training is the priority. During heavy training periods you can add a second sachet about an hour before your session.
Can I mix it with milk or cold water?
We recommend room-temperature water for the smoothest mix and fastest absorption. Milk slows digestion and adds lactose; very cold water can make the powder clump.
Can I get the same flavour in every sachet?
The box is designed as a 7-flavour discovery pack – one sachet of each. Once you know your favourite, the full-size tub is available in every flavour.
Is it tested for banned substances?
SCN™ products are produced under strict quality controls and are 100% doping-free and cross-contamination safe – see our doping-free policy.
Seven flavours. Four proteins. One box.
Discover why endurance athletes across Europe and beyond trust SCN™ Complete x4 for recovery – and find your favourite flavour in the most convenient format we have ever made.
This website is for your education and general health information only. The ideas, opinions and suggestions contained on this website are not to be used as a substitute for medical advice, diagnosis or treatment from your doctor for any health condition or problem. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended dose. Keep out of reach of children.
