£35.95
HR Labs Proven™ is a stimulant-free pre-workout designed for anytime use. It delivers nitric-oxide calling nutrients, cognitive boost, and energy support without caffeine – perfect for late-day training or athletes avoiding stimulants.
Ingredients (per scoop 16g)
Citrulline Malate 2:1
L-Tyrosine
Taurine
Oxystorm® (Amaranth Extract)
Pink Himalayan Salt
Vitamin C (Ascorbic Acid)
Peak ATP® (Adenosine 5′-Triphosphate Disodium)
Uridine Monophosphate
Cognatiq® (Coffee Fruit Extract)
Pomegranate Extract (15:1, 30% Punicalagins)
AstraGin® (Astragalus & Panax Notoginseng)
Other ingredients: Flavouring, Acidity Regulator, Sweetener (Sucralose), Colouring, Anti-Foam, Anti-Caking Agent
Nutritional Breakdown (per scoop)
Calories: 0–5kcal (negligible)
Carbohydrates: Trace
Protein/Fat: 0g
Suitable for Vegans/Vegetarians?
✅ Yes – Contains no animal-based ingredients. Halal and vegetarian-friendly.
Allergen Information:
Manufactured in a facility that processes gluten, eggs, soy, and milk.
Oh I do like a non-stim pre-workout!
Because I train in the evenings the majority of the time, I don’t want to be chugging down things with caffeine in that are going to affect the opportunity of me getting some quality sleep later on – so I tend to opt for workouts that help with focus and pumps instead.
I bounce between this and Strom VascuMax for increased mental energy, focus and blood flow – but don’t be fooled into thinking this is just for weight lifters – there’s numerous endurance-based benefits to be had here also.
Who it’s for:
If you’re training hard and want that pump and focus sans caffeine jitters or sleep disruption – then this is for you. Ideal for evenings or caffeine-sensitive athletes.
What it does:
Citrulline Malate ramps up nitric oxide for that ‘pump’. Taurine supports hydration and endurance. Peak ATP® fuels your muscles at a cellular level. Plus, cognition gets a boost from L-Tyrosine, Uridine, and Cognatiq® – a full-spectrum ride.
How I’d use it:
Mix a scoop with water 20–30 minutes before working out – morning, midday, or evening. Expect better blood flow, cleaner energy, and focus that lasts through every rep.
The Science:
Citrulline Malate & Nitric Oxide-Mediated Performance
Study: A comprehensive review of citrulline (and citrulline-malate) supplementation across studies found improvements in nitric oxide production, delays in fatigue, and better anaerobic performance.
Journal of the International Society of Sports Nutrition (Gough et al., 2021)
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8571142/
Citrulline Malate can support enhanced blood flow and reduce fatigue – key for that pump, focus, and sustained effort, fitting Proven’s nitric oxide emphasis.
Peak ATP® Enhances Strength, Power & Muscle Activation
Study: A systematic review confirmed that 400mg oral ATP (Peak ATP®) supplementation significantly improves strength (up to +147%), power (+30%), and lean body mass (+100%) over placebo in resistance-trained individuals.
TSI Group systematic review (Wilson et al., 2013, updated analysis)
https://www.peakatp.com/systematic-review-validates-peak-atp-as-an-optimal-pre-workout-ingredient/
Peak ATP® supports physical performance and recovery – making it a high-impact addition to a stim-free pre-workout like Proven.
