Upfront Whey Isolaat vs ESN Iso Whey Protein
Fair comparison based on price per gram of protein, quality and more.
Verdict
Upfront Whey Isolaat is the better deal at $0.061/g vs $0.077/g (21% cheaper).
Also has more protein per shake: 30g vs 25g per shake.
| Property | ![]() Upfront Whey Isolaat Best value | ![]() ESN Iso Whey Protein |
|---|---|---|
| Price | $36.80 | $57.38 |
| Weight | 700g | 908g |
| Price per gram protein | $0.061 | $0.077 |
| Price per kg | $52.57 | $63.19 |
| Protein per shake | 30g | 25g |
| Protein percentage | 86% | 83% |
| Calories per shake | 128 kcal | 107 kcal |
| Type | Isolate | Isolate |
| Servings | 20 | 30 |
| Flavors | 2 flavors | 2 flavors |
| Rating | ⭐ 4.6 (65 reviews) | ⭐ 4.5 (80142 reviews) |
| Lactose free | ✅ Yes | ✅ Yes |
| Sugar free | ❌ No | ✅ Yes |

Upfront Whey Isolaat
Best value- Price
- $36.80
- Weight
- 700g
- Price per gram protein
- $0.061
- Price per kg
- $52.57
- Protein per shake
- 30g
- Protein percentage
- 86%
- Calories per shake
- 128 kcal
- Type
- Isolate
- Servings
- 20
- Flavors
- 2 flavors
- Rating
- ⭐ 4.6 (65 reviews)
- Lactose free
- ✅ Yes
- Sugar free
- ❌ No

ESN Iso Whey Protein
- Price
- $57.38
- Weight
- 908g
- Price per gram protein
- $0.077
- Price per kg
- $63.19
- Protein per shake
- 25g
- Protein percentage
- 83%
- Calories per shake
- 107 kcal
- Type
- Isolate
- Servings
- 30
- Flavors
- 2 flavors
- Rating
- ⭐ 4.5 (80142 reviews)
- Lactose free
- ✅ Yes
- Sugar free
- ✅ Yes

Upfront Whey Isolaat
Dutch whey isolate with high protein content and minimal fat and lactose. Grassfed whey protein with transparent sourcing. Suitable for athletes who want a pure isolate without unnecessary additives.
Pros
- ✓ 100% Dutch-made
- ✓ Grassfed whey protein
- ✓ Transparent supply chain
- ✓ Virtually lactose-free (isolate)
Cons
- ✗ Smaller package (700g)
- ✗ Only available online
Rate this product
Via Upfront★4.6(65 ratings)
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ESN Iso Whey Protein
ESN whey isolate. Low in carbs and fat, high in protein.
Pros
- ✓ 90% protein
- ✓ Low fat
- ✓ German quality
Cons
- ✗ Fewer flavors
Rate this product
Via ESN★4.5(80,142 ratings)
100%Via WheyWijzerNo community ratings yet
0%Is this product good?