10 Best Supplements To Gain Muscle Mass in 2026

A single serving delivers 1,250 calories, 50 grams of protein, and 252 grams of carbs from just three ingredients, whey, casein, and organic tapioca maltodextrin. That makes it a straightforward option for anyone who wants to pack on mass without guessing what’s inside their shake.

The trade-off is that it’s unflavored, which means you’ll want to blend it with fruit, peanut butter, or milk to make it taste good, plain mixed with water can be a chore. Compared to Dymatize Super Mass Gainer, which offers 1,280 calories, 52g protein, and 245g carbs per serving, Naked Mass uses a simpler ingredient list but requires you to add your own flavor. If you don’t mind mixing your own flavors and want a clean, minimal-ingredient mass gainer, this is the one.

With 1,280 calories and 52 grams of protein per serving, this is built for anyone who struggles to eat enough to add serious size. The blend of fast-digesting whey and slow-digesting casein means your muscles get a steady stream of amino acids over hours, not just a quick spike. That sustained delivery supports muscle growth and recovery for long-lasting results, which is exactly what you need when your goal is packing on pounds. It also includes 1 gram of creatine and a handful of vitamins, so you are covering a few extra bases without another tub on the shelf.

Portion size is the trade-off: each serving packs 245 grams of carbs and 1,280 calories, so mixing a full serving can feel like a meal in a glass. If you are not used to that density, it might sit heavy or take effort to finish. Compared to NAKED Mass Natural Weight Gainer, which also offers 1,250 calories per serving, this Dymatize option includes added creatine and a blend of whey and casein. For the lifter who wants maximum calories and protein in minimal servings, this is a straightforward tool. Just know the container provides 8 servings.

Over 1,200 calories per two-scoop serving make this a serious tool when your appetite can’t keep up with your goals. The 20-plus vitamins and minerals also help cover nutritional gaps, so you’re not just adding mass but supporting recovery and immune function along the way. This is a mass gainer for anyone who has tried eating more and still struggles to tip the scale upward.

Serious Mass delivers over 250 grams of carbohydrates per serving, which works great for hardgainers and high-volume trainers but feels heavy if you’re watching your carb intake or prefer a leaner gainer. Compared to the Dymatize Super Mass Gainer, which also packs around 1,280 calories, Serious Mass offers a slightly higher carb count and a broader vitamin profile. That makes it the more nutritionally complete option for a dedicated bulk. Just plan to blend it with milk or fruit, because drinking two scoops with water alone can be a thick, sweet commitment.

A single scoop delivers 30g of whey protein isolate plus 3g of creatine and 6.6g of BCAAs, so you get two muscle-building ingredients without mixing separate powders. Clinical data shows users adding 8.8 pounds of lean muscle over six weeks, which is 70% better than ordinary whey alone. The micro-filtration strips out excess fat and carbs, and the added Enzyplex enzyme blend helps your stomach handle the protein load more comfortably.

The tub holds 40 scoops, so you’ll need to plan your usage if you train daily. Clinical results are based on six weeks of consistent use, so this rewards patience rather than promising overnight changes. It’s a good fit for lifters who want a lean protein-plus-creatine combo without extra calories from a weight gainer.

Fifty-six grams of protein per serving from a blend of whey isolate, concentrate, and casein gives you both fast and slow-digesting amino acids, which helps keep your muscles fed for hours after a shake. The 1,100 calories come partly from whole-food sources like barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed, and sunflower oil, so you’re getting micronutrients and fiber alongside the macros. That makes this a smart pick if you want a mass gainer that feels closer to real food than a bag of powdered sugar.

Each 2.2 lb pouch delivers 1,100 calories and 56 g of protein per serving, but you get only 16 servings total. So you’ll be ordering more often than with a larger tub like Optimum Nutrition Serious Mass. The triple chocolate flavor is the only option listed, which limits variety for those who prefer other tastes. Still, for someone who values whole-food ingredients like barley, sweet potato, and rolled oats, plus a protein blend that combines whey isolate, whey concentrate, and casein, this gainer covers both immediate and sustained release.

This makes it a smart pick if dairy-based whey leaves you bloated or uncomfortable, especially when you are just starting out and figuring out what your gut can handle.

This is a straight protein supplement, not a mass gainer. If your goal is to pack on serious size quickly, you will need to add your own calories from food or choose a product designed for that purpose. Carnivor Beef Protein works best as a clean, everyday recovery tool for lifters who want the muscle-building aminos without the dairy or the sugar crash.

Twenty-four grams of protein from a six-source matrix, hydrolyzed whey, whey isolate, concentrate, calcium caseinate, micellar casein, and milk protein concentrate, means your muscles get both fast and slow-digesting amino acids. That blend supports recovery right after a workout and keeps feeding your muscles for hours, all while keeping sugar low enough for a keto-friendly diet. This is the protein for someone who wants a clean, creamy shake without the carb crash, perfect as a between-meal snack or post-gym staple when you are not trying to force down a thousand calories.

At 24 grams of protein per serving, Syntha-6 Edge sits squarely in the standard protein range, not the mass-gainer category. If your goal is rapid weight gain with maximum calories, Dymatize Super Mass Gainer delivers 52 grams of protein and 1,280 calories per serving. But for anyone who wants a low-sugar, versatile protein with a creamy texture that fits into a balanced diet, this blend works well for daily recovery and muscle support.

This protein is best suited for lifters who want a low-sugar, multi-source protein for daily recovery and between-meal use. It is not ideal for those needing high-calorie mass gain or a higher protein dose per serving, since it provides only 24 grams of protein and a lower calorie count compared to mass gainers.

A single serving delivers 1,500 calories and 60 grams of protein when mixed with skim milk, making it one of the densest mass gainers you can scoop. That calorie load means you can hit a serious surplus without having to choke down multiple shakes a day, which is exactly what someone trying to add size quickly needs. The creatine monohydrate here is HPLC-tested, and studies indicate it helps replenish ATP stores for better performance and strength gains over time.

Each serving takes six scoops and requires two cups of skim milk, so you are committing to a fairly thick, heavy shake. If you compare it to a leaner option like Rival Nutrition Clean Gainer, which offers 550 calories per serving, this one is clearly built for aggressive bulking rather than a moderate surplus. For anyone who struggles to eat enough and wants the added creatine boost without buying a separate supplement, this tub does the heavy lifting in one drink.

At 550 calories and 30 grams of protein per serving, this gainer keeps the focus on clean ingredients without packing in filler calories. The protein blend draws from whey, milk, and micellar casein, which means your body gets a steady release of amino acids over time. That matters when you are trying to add lean mass without the bloated feeling some heavy gainers leave behind. The multi-source carbs come from quinoa, blueberry, and oat fiber, not just cheap maltodextrin, so you are fueling recovery with real food sources. This one suits anyone who wants a straightforward, no-junk option that still delivers solid macros for muscle growth.

Five hundred fifty calories per serving is on the lighter end for serious bulkers. If your goal is to pack on size quickly and you need a denser calorie load, other gainers on the market offer more calories per serving. But for the lifter who prefers natural flavors, stevia sweetness, and a clean ingredient list that skips artificial dyes and fillers, Rival Nutrition Clean Gainer hits a sweet spot. It mixes easily with cold water or milk, so you are not stuck blending a thick sludge post-workout. Best for the person who values ingredient quality over sheer calorie count.

25 grams of protein with just 5 carbs and 1 gram of sugar makes this a standout option if you want muscle gains without the heavy carb load. It fits neatly into a lower-carb or keto-friendly approach, and the WADA approval means competitive athletes can use it without worry. The five flavor choices and no-clumps guarantee take the hassle out of mixing, so you can focus on recovery rather than fighting with a shaker bottle.

This is a leaner gainer, not the kind you grab when you need to pack on mass fast with high calorie counts. Compared to the Dymatize Super Mass Gainer, which delivers 52g of protein and 245g carbs per serving, Insane Whey is better suited for someone who wants controlled, steady muscle building without the sugar spike. It does one thing well, but if you are chasing extreme bulk, you will want a heavier option.