5 prominent liquid protein supplements to try in 2026

Pure Genius is the top liquid protein supplement this year with 23g of protein in a 3.38 fl oz shot with 0g of sugar. Most liquid protein supplements began as medical products, which is why so many are thick, faintly medicinal and easier to put up with than to enjoy. That works in a care setting, but it’s a hard sell on a busy morning when you want more protein without scooping powder into a shaker.

We ranked five protein supplements by one question: Would you take it every day? A good routine you keep outperforms a perfect one you miss.

We compared five products, from clinical concentrates to classic nutrition shakes, on four things:

• Protein per serving: How many grams one dose gives you.
• Protein source: Which proteins the formula is made from.
• Sweeteners and dyes: What sweetens it and whether it uses added colors.
• Sugar: How many grams of sugar one dose has.

Protein, calories, sugar and ingredient details come from brand pages or authorized retailer listings, as of October 2026. The picks include two clinical protein packets and two long-established nutrition shakes.

Best for: People who want 23g of protein a day with no mixing, measuring or fridge.

• Protein: 23g
• Calories: 100, with 0g sugar and 0g fat
• Serving size: 3.38 fl oz
• Price: $4.00 per shot ($48 for 12).

Pure Genius Protein combines BLG (a whey protein) and hydrolyzed collagen peptides in a 2:1 ratio, and it includes all 9 essential amino acids and 2.4g of leucine, an amino acid. The formula was developed with a Scientific Advisory Board. 

It comes in Pink Lemonade, Lemon Lime and Strawberry Guava, sweetened with monk fruit and stevia and made without artificial sweeteners, flavors or dyes. Every batch is third-party tested by Light Labs. It is shelf-stable, so it needs no shaker and no refrigeration. A Protein+Fiber version is also available with 20g of protein, 5g of fiber and 100 calories.

What to consider: Each 3.38 fl oz shot delivers 23g of protein with 0g of sugar.

• Protein: 15g
• Calories: 100
• Serving size: 1 fl oz

Pro-Stat is a 1 fl oz packet of concentrated protein sold mainly through medical retailers. Each packet has 15g of protein and 100 calories, made from hydrolyzed collagen with added L-tryptophan. The sugar-free version has 0g of sugar and is sweetened with sucralose. It comes in flavors such as Wild Cherry Punch, Citrus Splash and Grape.

What to consider: Look elsewhere if you prefer to avoid artificial sweeteners, since it uses sucralose.

• Protein: 15g
• Calories: 60 (Sugar-Free Orange)
• Serving size: 1 oz

Medline Active Liquid Protein comes in 1 oz packets and is sold mainly through medical suppliers. Each packet has 15g of protein from collagen and whey, with 60 calories and 0g of sugar in the Sugar-Free Orange flavor. It is sweetened with sucralose and acesulfame potassium and colored with Yellow 5.

What to consider: Skip this one if you avoid artificial dyes, since it contains Yellow 5.

• Protein: 16g
• Calories: 350
• Serving size: 8 fl oz

Ensure Plus is an 8 fl oz nutrition shake from Abbott. Each bottle has 16g of protein from milk and soy protein, with 350 calories and 20g of sugar, 19g of it added. It is sweetened with sugar. 

What to consider: A different pick may suit you better if you are watching sugar, since each bottle has 20g.

• Protein: 20g
• Calories: 250
• Serving size: 8 fl oz

Boost High Protein is an 8 fl oz nutritional drink from Nestlé. Each bottle has 20g of protein from milk protein, caseinates and soy protein, with 250 calories and 11g of sugar. It is sweetened with sugar, glucose syrup and stevia.

What to consider: Choose another option if you want fewer calories, since each bottle has 250.

• Convenience: Liquid is ready to drink, while powder needs a scoop, a shaker and a liquid, and it can clump.
• Protein amount: Powder lets you choose the scoop size, whereas liquid gives you a fixed dose, which ranges from 15g to 23g here.
• Cost: Powder can cost less per gram of protein, while liquid skips the scooping and mixing.
• Evidence: The ISSN position stand on protein and exercise focuses on total daily protein and does not show that liquid or powder is better, so choose the one you will keep up.

Pure Genius Protein Shot is the easiest pick as it pairs the most protein on this list (23g) with 100 calories, 0g of sugar and no refrigeration in a 3.38 fl oz shot. Depending on what you need, you should consider:

• Best overall: Pure Genius Protein Shot, for a daily shot with no mixing and no fridge.
• Also consider: Pro-Stat Sugar-Free Liquid Protein, Medline Active Liquid Protein, Ensure Plus and Boost High Protein.

If you have kidney disease or any other medical condition, are pregnant or nursing, or take medication, check with your healthcare provider before adding a liquid protein supplement.

The Pure Genius Protein Shot is the best liquid protein supplement for everyday use, with 23g of protein, 100 calories and 0g sugar.

Research focuses on total daily protein rather than the format. Liquid protein is more convenient and powder usually costs less, so pick whichever one you will take consistently.

It depends on the product. A Pure Genius shot has 23g of protein in 3.38 fl oz, and other shots vary, so check the label.

Many people do, and a daily shot is easy to build into a routine. It works best alongside whole foods rather than in place of meals. If you are pregnant, nursing, have a medical condition or take medication, check with your healthcare provider first.

This article was written in cooperation with Tom White