Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.7 Best Supplements To Increase Muscle Mass | Real Muscle Gains

Check Price on Amazon

Optimum Nutrition’s Gold Standard Whey has been a staple in the supplement world for nearly two decades because it delivers a consistently clean 24 grams of protein per scoop with only about 1 gram of sugar and 3 grams of carbs. The primary ingredient is whey protein isolate, which has much of the lactose and fat removed, making it a lean choice for anyone focused on body recomposition or cutting phases. The Double Rich Chocolate flavor is well-regarded for its balanced sweetness, mixing easily in a shaker bottle with water or milk without clumping.

Beyond the protein content, each serving provides 5.5 grams of naturally occurring branched-chain amino acids, including leucine, isoleucine, and valine — the three amino acids most directly involved in stimulating muscle protein synthesis. The formula is designed to be fast-absorbing, which makes it ideal for a post-workout window when your muscles are primed to shuttle in nutrients. The company has maintained a strong reputation for third-party testing and ingredient transparency, which gives this powder an edge over cheaper, more opaque blends.

One practical consideration is that this is not a mass gainer — it is a straight whey protein concentrate and isolate blend. If you are a hardgainer who needs 800+ calories per shake, you will need to add your own carbs and fats. However, for most lifters looking to hit a daily protein target of 1.6-2.2 grams per kilogram of body weight, this is the most cost-effective and reliable anchor for your supplement stack. Mix it with milk for extra calories or water for a leaner shake.

Check Price on Amazon

GHOST Clear Whey breaks the mold of thick, milky protein shakes by delivering a fully transparent, fruit-juice-like texture that is surprisingly refreshing post-workout. With 25 grams of whey protein isolate per serving and absolutely zero fat or sugar, it is one of the cleanest protein sources you can take immediately after training.

The formula uses whey isolate exclusively, which means the protein is rapidly absorbed and contains very low levels of lactose. This is a major advantage for anyone who experiences bloating or digestive discomfort from standard whey concentrate blends. The brand uses a fully transparent label without proprietary blends, so you know exactly how much of each ingredient you are getting per scoop. It mixes well with a shaker bottle, though the fine powder can foam slightly if shaken too aggressively — letting it sit for two minutes resolves this.

The biggest trade-off here is serving size and price point. With only about 20 servings per tub, the cost per gram of protein is higher than bulkier whey concentrates. For mass gain purposes, you may need two scoops per day to meaningfully move the needle on total protein intake, which adds up quickly. This is best used as a single post-workout shake to spike amino acids rapidly, rather than a primary protein source for the entire day.

Check Price on Amazon

Ascent Clean Creatine Monohydrate is about as pure as creatine gets. It uses Creapure, a German-manufactured creatine monohydrate that is widely regarded for having the lowest levels of impurities like creatinine, DHT, and DCD. Each 5-gram serving is unflavored and free of any fillers, artificial sweeteners, or coloring. It is also Informed Sport certified, meaning every batch is tested for banned substances — a critical detail for competitive athletes or anyone concerned about supplement contamination.

The micronized texture means the powder dissolves fairly well in cold water or coffee, though it may settle slightly if not stirred thoroughly. Users report minimal bloating compared to lower-grade creatine brands, which is one of the hallmark advantages of Creapure certification. Creatine monohydrate works by increasing the phosphocreatine stores in your muscles, allowing you to produce more ATP during high-intensity lifts. Over time, this translates to being able to push an extra rep or increase the weight on the bar, which directly drives hypertrophy.

For pure mass-building purposes, creatine is arguably the single most effective supplement outside of protein. Safe long-term use is well-documented, with no evidence of kidney damage in healthy individuals at standard 5g daily doses. The 100-serving container offers excellent value per gram of active ingredient. The only downside is the lack of flavor — you will need to mix it into a flavored drink or shake to mask the neutral taste, but for many lifters that is a trade-off worth making for purity.

Check Price on Amazon

BioTrust Ageless Muscle Builder is a targeted formula designed for a specific demographic: adults over 40, individuals on GLP-1 medications, or anyone experiencing natural age-related muscle loss. The combination of micronized creatine monohydrate and HMB (beta-hydroxy beta-methylbutyrate) is strategic — HMB helps slow muscle protein breakdown, while creatine boosts performance in the gym for building new tissue. Adding vitamin D3 and betaine further supports bone health and homocysteine metabolism, which become more relevant with age.

The fruit punch flavor is light and not overly sweet, and the powder mixes smoothly in cold water without clumping. Each container provides 30 servings, which is a standard month’s supply at one scoop per day. The inclusion of HMB sets this apart from standard creatine powders — HMB is particularly useful during periods of calorie restriction or detraining, making this a solid choice for someone cycling between bulk and maintenance phases. Users consistently report noticeable improvements in recovery between workouts, which is the first place muscle loss shows up as we age.

The main drawback is the relatively high cost per serving compared to straight creatine monohydrate or bulk HMB capsules. If you are a younger lifter in a consistent calorie surplus, the HMB component may be unnecessary and you would be better served by a pure 5g creatine product. But for the over-40 crowd or those managing muscle preservation alongside fat loss, the added ingredients justify the price tag. It also uses stevia as a sweetener, which has a mild aftertaste that some users find slightly bitter.

Check Price on Amazon

MuscleTech Cell-Tech takes a different approach to creatine supplementation by pairing a hefty 10-gram dose of ultra-pure creatine monohydrate with 75 grams of carbohydrates per two-scoop serving. The idea is to spike insulin levels, which in theory helps shuttle creatine into muscle cells more efficiently and enhances cell volumization for a fuller, harder look. The formula also includes BCAAs, taurine, and alanine to support recovery and hydration at the cellular level.

The Tropical Citrus Punch flavor is well-liked for its taste and mixability — it dissolves easily in 12 ounces of water with minimal clumping. For a hardgainer who struggles to eat enough calories, this kills two birds with one stone by delivering a meaningful dose of both carbs and creatine in a single shake. The clinical validation behind the carb-creatine combination is solid: insulin is anabolic, and post-workout is the optimal time to use this synergy. Users report faster recovery and noticeable strength gains within the first two weeks of consistent use.

The obvious downside is the high sugar content (75g per serving from dextrose and other carbs). If you are not training intensely or if you are in a cutting phase, those extra carbohydrates will likely be stored as fat rather than used for glycogen replenishment. The 27-serving container also runs out quickly if you use two scoops daily. This is a targeted tool for the post-workout window only — not a supplement to sip throughout the day.

Check Price on Amazon

Orgain Organic Vegan Protein is a plant-based option that holds its own against whey for supporting muscle mass, provided you are willing to accept a slightly lower protein density per serving. With 21 grams of protein from organic peas, brown rice, and chia seeds, it delivers all nine essential amino acids — though the leucine content is lower than what you would get from whey isolate, meaning you may need an extra half-scoop to fully stimulate muscle protein synthesis. The Creamy Chocolate Fudge flavor is surprisingly rich for a plant powder, with cocoa notes that mask the earthy taste typical of pea-based formulas.

The standout feature here is the 6 grams of prebiotic fiber per serving, which supports gut health and regularity — a common concern for people who increase protein intake without boosting fiber. It is certified USDA organic, vegan, non-GMO, and free from soy, gluten, and dairy ingredients. For anyone with lactose intolerance or a plant-based diet, this is one of the cleanest and most accessible ways to add protein for muscle building. User reviews consistently praise its smooth texture and lack of grittiness compared to other plant powders.

The biggest limitation is the protein-to-calorie ratio. Each serving is 150 calories for only 21 grams of protein, which means the protein content is about 56% of total calories — lower than whey isolate, which often hits 80-90%. If you are on a strict calorie budget, this leaves less room for other macro-dense foods. It also contains 0 grams of added sugar, but the stevia aftertaste is noticeable to some users.

Check Price on Amazon

MuscleMeds CARNIVOR Mass Gainer is built for one specific job: moving the scale up. Each serving provides a massive 50 grams of beef protein isolate, 125 grams of carbohydrates, and over 700 calories, with zero grams of fat or sugar. The protein source is beef isolate, which is lactose-free and dairy-free — a critical advantage for anyone who cannot tolerate whey or milk-based proteins. Beef isolate is also highly concentrated in amino acids, with a profile that is 350% more concentrated per gram than steak weight.

The Chocolate Peanut Butter flavor is surprisingly palatable for a beef-based product. Users report that the powder mixes more easily than typical mass gainers, which often turn into a thick paste. The carb source is optimized for fast digestion, supporting rapid glycogen replenishment and an insulin spike that drives amino acids into muscle tissue. For hardgainers who struggle to eat enough whole food, this is a calorie-efficient way to get into a consistent surplus without having to force down extra meals.

The main trade-off is the sheer calorie density — this is not a supplement you take casually or outside of a dedicated bulking phase. Using four scoops daily provides 100 grams of protein and 250 grams of carbs, which is a serious caloric load that can easily derail body composition goals if not matched with the appropriate training stimulus. The beef protein isolate also has a faint, distinct aroma that some users notice, though the flavoring largely masks it.