Quick Picks
Eight products that made our shortlist after filtering across all 12 tracked US retailers. Click any pick to see live prices, all retailers, and the latest deal.
How We Ranked These
Filtered to thin-mixing, water-clear protein: clear whey, pure whey isolates, protein waters, and zero-carb RTDs. These don't sit heavy in the stomach 30 minutes before training. Ranked by cost per gram of protein.
All prices verified within the last 24 hours. We re-check every product across all 12 tracked retailers (Walmart, Amazon, iHerb, GNC, Bodybuilding.com, Target, Vitacost, Muscle & Strength, Costco, Tiger Fitness, MyProtein, Transparent Labs) every two hours. Out-of-stock products are excluded from these rankings entirely.
Our Top Pick
5 lb · 25g protein/scoop · 75 servings
Water-thin protein that hits your stomach light. 20g of fast-absorbing isolate or clear whey, no fat, no fillers. The best mixer-able pre-workout protein on the shelf right now. See Amazon price →
Runner-Up
7.5 lb · 25g protein/scoop · 103 servings
MyProtein Clear Whey: juice-like texture, lighter than any whey shake, 20g of fast-absorbing isolate. The taste pick of the pre-workout tier. See Costco price →
Honorable Mentions
The next picks worth knowing about. Slightly different trade-offs but still in the top tier for this category.
MyProtein Clear Whey Isolate. 2.2 lb, 20g protein/scoop, $39.99 at MyProtein.
Dymatize ISO100 Hydrolyzed Whey Isolate. 5 lb, 25g protein/scoop, $79.99 at Amazon.
Optimum Nutrition Platinum Hydrowhey. 3.5 lb, 30g protein/scoop, $64.99 at Amazon.
Kaged Hydra-Charge + Clear Whey. 1.1 lb, 18g protein/scoop, $39.99 at Amazon.
See clear whey and isolate pricing
Light, fast-mixing protein for pre-workout use. Browse the full clear whey category.
Browse clear whey →Frequently Asked Questions
Yes, if your last meal was more than 3 hours ago. Pre-workout protein keeps amino acids elevated during training, supporting muscle protein synthesis. 15 to 25g of fast-absorbing whey isolate or clear whey 30 to 45 minutes pre-training is the sweet spot.
Only if you go heavy. A 20g whey isolate shake digests in 60 to 90 minutes and is fully cleared before most training sessions end. A heavy whey blend with 24g protein, 5g fat, and 5g carbs sits heavier and can cause GI distress mid-workout.
Clear whey (whey isolate hydrolysate) has a juice-like texture, mixes with water in seconds, and digests faster than any other commercial protein. It hits your stomach light and your bloodstream fast. Perfect for the 30-minute pre-workout window.
30 to 45 minutes before. Earlier than that, the protein's been digested before you start; later than that, your stomach is still digesting during training. The window scales with the protein form: 15 minutes for clear whey hydrolysate, 60 minutes for a whey blend.
Not strictly. Total daily protein matters more than exact timing. But for fasted morning training, pre-workout protein is meaningfully better than nothing (your overnight fast left your amino acid stores low). For evening training after a protein-rich dinner, the marginal benefit shrinks.
Yes. Whey protein doesn't interact with caffeine, beta-alanine, or other common pre-workout ingredients. Many lifters use a stack of clear whey + pre-workout 30 minutes before training. Don't combine creatine and protein in the same shake (taste reasons, not biology).
Related Rankings
Other useful price comparisons on ProteinPrice.com:
- The full best-value protein ranking across all 377 tracked products.
- Head-to-head product comparisons across our catalog.
- Browse whey isolate, the cleanest whey category by macros.
- Browse all whey protein blends, isolates, and concentrates.
- Casein protein for slow-release recovery and bedtime use.
- Plant protein from pea, rice, hemp, and soy blends.
- Mass gainers for hard gainers and calorie-surplus bulking.
- Protein bar comparisons across 70+ tracked bars.
- Ready-to-drink shakes and protein waters.
- Current protein deals live across all retailers.