Optimum Nutrition Gold Standard 100% Plant Protein Powder, French Vanilla / Double Rich Chocolate, 684g (£12.60 / £11.90 max S&S)

Optimum Nutrition Gold Standard 100% Plant Protein powder in French Vanilla Creme (684g, 21 servings) is down to £14.00 at Amazon. It has typically been selling for around £24.96 over recent months, so this works out at roughly 44% below its usual price.
Its currently ranked 2,208 in Health & Personal Care on Amazon and rated 4.0 out of 5 from 1,519 customer ratings, so plenty of buyers have already tried it.
Key features:
Plant-based protein powder thats gluten free and 100% vegan
24g of plant protein per serving to support the growth and maintenance of muscle mass
Vegan Society approved, with a complete amino acid profile
No artificial colours or flavours
Contains vitamins B12 and C, which contribute to normal energy-yielding metabolism