At Best-Supps, you'll find whey protein from international premium brands – as a classic concentrate, highly filtered isolate, or refreshing clear whey, in many flavors from chocolate and vanilla to fruity varieties. A wide selection of brands, fast delivery, and verified product data: Discover the complete whey protein range below and find the protein powder that suits your goal.
What is Whey Protein?
Whey protein – or "molkenprotein" in German – is a protein powder derived from whey, a natural byproduct of cheese production. The liquid whey is filtered, the protein it contains is concentrated, and then gently dried into powder. What remains is a high-quality, easily soluble protein source with a complete amino acid profile, containing all essential amino acids.
This combination is precisely what makes whey so popular: it can be mixed into a shake in seconds, tastes pleasant in most varieties, and fits into almost any diet – whether as a snack between meals, after training, or as a convenient supplement when protein requirements are difficult to meet through normal meals alone. As "whey protein," "molkenproteinpulver," or simply "protein powder," it is the standard protein in strength and fitness sports and for many, the entry into the world of dietary supplements.
A significant reason for its popularity is the high biological value of whey protein: the body can utilize the contained protein well, and its amino acid profile covers the complete requirement for essential amino acids. Additionally, it has a high content of branched-chain amino acids (BCAA). Compared to many other protein sources, whey is also cost-effective per gram of protein, has a long shelf life, and is versatile – qualities that have made it the best-selling protein powder ever.
Whey Protein Varieties at a Glance
Not all whey is created equal. Depending on the filtration process, three basic forms of whey protein are distinguished, as well as refreshing clear whey. They differ primarily in their protein content per serving, residual fat and lactose, as well as price and the consistency of the finished shake.
Whey Concentrate
Whey concentrate is the most original and best-selling form of whey protein. It is produced in the first filtration step and, in addition to protein, still contains small amounts of fat and lactose. This provides a creamy, milky consistency and a full-bodied taste. Concentrate generally offers the best value for money and is the obvious choice for most fitness goals – provided you tolerate lactose well.
Whey Isolate
Whey isolate is more heavily filtered. Most of the fat and lactose are removed, which increases the relative protein content per serving and usually makes the powder almost lactose-free. Isolate is therefore particularly suitable for those who pay attention to every gram of protein, want to keep carbohydrates and fat low, or are sensitive to lactose. You can find the entire isolate selection in our Whey Isolate category.
Whey Hydrolysate
With whey hydrolysate, the whey protein is already enzymatically broken down into smaller protein chains (peptides) – it is virtually "pre-digested." This makes the protein available to the body particularly quickly. Hydrolysate is usually in a higher price category and is aimed more at ambitious and advanced athletes.
Clear Whey
Clear Whey is the modern, refreshing alternative to the classic milkshake. Instead of being creamy, it is clear and juicy-fruity – similar to a fruit spritzer – and lighter on the stomach. Those who don't like thick shakes will find a welcome change here. We have grouped all clear varieties in the Clear Protein category.
Varieties in direct comparison
Variant | Protein Content | Lactose & Fat | Consistency | Typical Use |
|---|---|---|---|---|
Whey Concentrate | solid | some included | creamy, milky | all-rounder & beginner, best value for money |
Whey Isolate | particularly high | greatly reduced | light, less thick | cutting phase, low lactose, high protein focus |
Whey Hydrolysate | high | greatly reduced | light | advanced, fast availability |
Clear Whey | high | very low | clear, juicy-fruity | refreshing alternative, light on the stomach |
What is Whey Protein Used For?
Whey protein is primarily a convenient source of protein. The body needs protein for numerous tasks, and the requirement increases with activity level: those who regularly engage in strength or endurance sports have a higher protein requirement than someone who is less active. Adequate protein intake can also support muscle regeneration after training. This is where whey comes in – it helps to meet this need easily and without extensive meal planning.
Whey is particularly popular in these situations: as a quick protein shake after training, as a protein-rich snack between meals, as an ingredient in recipes like porridge, quark, or pancakes, and as a simple way to meet daily protein requirements without unnecessarily increasing daily calorie intake. Depending on the dietary goal, whey protein, when used for calorie control, can also stimulate metabolism and aid in weight loss. Thus, whey protein is not a substitute for a balanced diet, but a sensible supplement when everyday life leaves little time for the perfect meal.
Whey Protein and Your Goal
Which whey is best depends primarily on what you want to achieve. The basic function always remains the same – a convenient protein source – but depending on the goal, different properties come to the forefront.
Muscle Building & Strength Training
Those who train intensely have an increased protein requirement. Depending on the intensity, athletes often require 1.2 to 2.0 g of protein per kilogram of body weight. Whey is popular here because it can be easily incorporated into daily routines and consumed quickly around training. One serving of whey protein can provide about 25g of protein. For muscle building, it's less about a specific "wonder product" and more about consistently meeting daily protein needs – and that's exactly what a good-tasting whey makes easy, to support muscles and musculature in building up, with a high-quality amino acid profile also being important. Both concentrate and isolate work for this.
Weight Loss & Cutting Phase
In a diet or cutting phase, every calorie counts. This is where whey isolate shows its strength: high protein content with low fat and carbohydrates. Mixed with water instead of milk, the shake remains particularly low in calories and still provides a good portion of protein – practical if you want to stay full, curb cravings with protein shakes, and also watch your calories.
Everyday Life & General Protein Supply
Not everyone trains for competitions. As a rough guideline, the German Nutrition Society recommends 0.8 g of protein per kilogram of body weight for adults. Even in normal everyday life, many find it difficult to get enough protein from meals – for example, when time is short or on the go. A quick shake conveniently fills this gap. For this purpose, a budget-friendly concentrate in your favorite flavor is usually the most relaxed choice.
Whey Protein Intake & Preparation
Preparation is incredibly simple: put one serving of powder with water or milk into a shaker, shake vigorously, and it's ready. Mixed with water, the shake remains particularly light and low in calories; with milk, it becomes creamier and more full-bodied. Most manufacturers recommend around 25–30g of powder per serving – a high-quality protein powder should ideally offer at least 20–25g of protein per serving, as a high protein content is an important quality criterion; the exact amount and recommended number of servings per day are always stated on the respective product packaging. For precise dosage, follow the manufacturer's instructions.
The exact timing of intake is less crucial than the total amount of protein consumed throughout the day. Many use whey after training because it can then be consumed particularly quickly and conveniently. A shake also fits well in the morning, as a snack, or whenever a protein-rich meal would otherwise be lacking. It is especially important that protein intake is distributed as evenly as possible throughout the day.
Buying Whey Protein – What Should You Look For?
When buying whey protein, it's worth looking beyond the mere price per kilogram. The following criteria will help you find the right protein powder for your goals.
Protein Content & Amino Acid Profile
The protein content per serving is the key purchasing criterion. Isolate and hydrolysate products generally provide a higher protein content than concentrates. Also, look for a complete amino acid profile – whey naturally contains a high proportion of branched-chain amino acids (BCAA). If you specifically want to supplement additional amino acids, you will find them in our Amino Acids (BCAA/EAA) category.
Taste & Solubility
The best protein is useless if it doesn't taste good. Classics like chocolate and vanilla are among the most popular flavors, alongside fruity and unusual flavors with different aromas, as well as neutral variants for mixing. However, depending on the variety and taste, the sugar content can vary greatly, and some protein powders contain up to 23g of sugar per serving. Good solubility ensures that the powder can be mixed without lumps – a quality feature that particularly distinguishes established premium brands.
Concentrate, Isolate, or Clear – Which Variant Suits You?
For beginners and everyday use, a good whey concentrate is usually perfectly sufficient and attractively priced. If you value the highest possible protein content with little fat and lactose – for example, in a cutting phase or if you are sensitive to lactose – then whey isolate is the better choice. If you don't like creamy shakes, clear whey is a refreshing alternative. This way, virtually everyone can find the right form.
Brand & Quality
Reputable manufacturers stand for consistent quality, good solubility, and transparent information. Ideally, this quality is also checked by external laboratory tests. Unverified protein powders can contain harmful ingredients. At Best-Supps, we deliberately rely on international premium brands instead of no-name products. You can see which brands these are in the next section.
Price per Serving Instead of Price per Kilogram
A low price per kilogram says little if the serving is small or low in protein. The price per serving in relation to the actual protein content is more meaningful. This way, you compare products fairly – regardless of package size and marketing.
Popular Whey Protein Brands at Best-Supps
Our assortment focuses on international premium brands that have a name in strength sports. These include Optimum Nutrition with the well-known Gold Standard Whey, Applied Nutrition, Mutant and Dymatize. Popular products from these ranges are, for example, or. You can go directly to the manufacturer's complete range via the respective brand page.
Related Categories & Useful Supplements
Whey protein can be well combined with other products. Those looking for a slow-digesting protein for the night in addition to fast-acting whey protein will find what they need in Casein, which provides amino acids over many hours and is therefore ideal before bed. A dairy-free alternative is Beef Protein. In addition, there are also animal and plant-based protein powders. Vegan protein often has peas and rice as a base. Pea protein is a popular plant-based protein source, and rice protein is often combined with it to complete the profile. Hemp protein contains valuable omega-3 fatty acids, while collagen protein comes from animal sources and can support joints. For many, Creatine is also a basic staple around training. And if you need something quick on the go, protein-rich snacks from the Protein Bars category are a practical addition to a shake.
This is how a coordinated basic equipment is created step by step: fast whey for during the day and after training, casein for the night, creatine and amino acids as targeted supplements, and bars for on the go. At Best-Supps, all these products come from the same international premium brands, so you can assemble quality and taste across your entire supplement shelf.
Quality, Storage & Shelf Life
You can recognize high-quality whey by clear labeling, good solubility, and a stable, consistent taste from batch to batch. This is precisely what established premium brands stand for – they invest in raw material quality and processing, which results in a lump-free, pleasant shake.
For storage, keep the powder dry, sealed, and protected from heat and direct sunlight to ensure it remains free-flowing and aromatic. It's best to prepare freshly mixed shakes and drink them promptly. The best-before date and storage instructions can be found on the respective packaging. This way, your whey retains its usual quality throughout the entire package.
Frequently Asked Questions About Whey Protein (FAQ)
Whey protein is a protein powder derived from whey during cheese production. It is highly soluble, has a complete amino acid profile, and serves as a convenient protein source to supplement the daily diet.
The three forms differ in their degree of filtration. Concentrate still contains some fat and lactose and is the most affordable. Isolate is more heavily filtered, has a higher protein content and is nearly lactose-free. Hydrolysate is already broken down into smaller protein chains and is available to the body particularly quickly.
The exact timing is secondary – what matters is the total amount of protein spread across the day. Many people drink their shake after training or as a snack between meals because it is especially convenient then.
Both work. With water the shake stays light and low in calories, with milk it becomes creamier and fuller-bodied. It is purely a matter of taste and depends on your goal.
That depends on your total protein requirement and your diet. As a guideline, the DGE suggests about 1.2 to 2.0 grams of protein per kilogram of body weight for athletes. An 80 kg man thus arrives at around 96 to 160 g of protein daily. Whey is a supplement to close gaps – usually one to two servings a day are enough. The serving size and number recommended on the packaging are the best guide. Permanently consuming more than 2 g of protein per kilogram of body weight can be harmful and put strain on the kidneys.
There is no blanket „better“ here, it depends on your goal. Concentrate offers the best value for money and is enough for most people. Isolate is the choice if you want a particularly high protein content with little fat and lactose, for example during a cutting phase or with lactose sensitivity.
Yes. A good Whey Concentrate is uncomplicated, attractively priced and the ideal choice for most beginners to conveniently cover their protein needs.
If you react sensitively to lactose, Whey Isolate, which is nearly lactose-free, is the best choice. Clear Whey also usually contains only very little lactose. In case of intolerances: follow the information on the product packaging.