The bottom line Dymatize ISO100 Hydrolyzed Whey Protein Isolate is the 100% whey protein isolate (no concentrate) for lactose-sensitive lifters and cutting phases at $89 per 5lb tub. The 25g protein per scoop is pure hydrolyzed whey isolate, the pre-digested hydrolyzed form absorbs faster than standard isolate or concentrate, the 5.5g BCAAs and 2.7g leucine per serving cover muscle protein synthesis thresholds, the under-1g lactose per serving makes it tolerable for most lactose-sensitive users, the 1g sugar and 110 calories fit cutting macros, and the Informed-Choice certification protects against banned substances. The trade is real money over standard whey blends and a thinner, less-dessert-like mouthfeel some users prefer.
Value
At $88 Dymatize ISO100 is the right hydrolyzed 100% whey isolate in 2026.
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Dymatize ISO100 Hydrolyzed 100% Whey Protein Isolate (Gourmet Chocolate, 5 lb) vs. the competition
Product
Our rating
Protein
Lactose
Cert
Price
Verdict
Dymatize ISO100 5lb
★★★★★ 4.7
25g hydrolyzed isolate
Under 1g
Informed-Choice
$88
Top Pick 100% Isolate
Optimum Gold Standard 5lb
★★★★★ 4.8
24g (isolate + conc)
1-3g
Informed-Sport
$78
Top Pick Blend
Transparent Labs Grass-Fed Whey
★★★★★ 4.7
28g (grass-fed isolate)
Under 1g
Informed-Choice
$69
Best Grass-Fed
Generic whey isolate
★★★★☆ 3.5
Variable
Variable
None
$39
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Full specifications
Protein per serving
25g (hydrolyzed isolate)
Lactose
Under 1g per serving
BCAAs
5.5g (2.7g leucine)
Sugar
1g
Calories
110 per serving
Certification
Informed-Choice
Made in USA
Yes
★ FINAL VERDICT
Should you buy the Dymatize ISO100 Hydrolyzed 100% Whey Protein Isolate (Gourmet Chocolate, 5 lb)?
Dymatize ISO100 Hydrolyzed Whey Protein Isolate is the 100% whey protein isolate (no concentrate) for lactose-sensitive lifters and cutting phases at $89 per 5lb tub. The 25g protein per scoop is pure hydrolyzed whey isolate, the pre-digested hydrolyzed form absorbs faster than standard isolate or concentrate, the 5.5g BCAAs and 2.7g leucine per serving cover muscle protein synthesis thresholds, the under-1g lactose per serving makes it tolerable for most lactose-sensitive users, the 1g sugar and 110 calories fit cutting macros, and the Informed-Choice certification protects against banned substances. The trade is real money over standard whey blends and a thinner, less-dessert-like mouthfeel some users prefer.