Beyond Caffeine: New Pre-Workout Ingredients Gaining Support

Beyond Caffeine: New Pre-Workout Ingredients Gaining Support

Pre-workout products are one of the most popular categories in sports nutrition. But if you strip away the marketing and branding, what does science actually say about individual ingredients? In this article, we examine which ingredients are proven, which are promising, and which are overhyped.

Caffeine: Still Number One

Let us start with the king. Caffeine is the most studied and evidence-backed ergogenic substance in sports nutrition. The ISSN position stand (Goldstein et al., 2010) confirms:

• Caffeine improves performance at doses of 3–6 mg/kg body weight
• Benefits are demonstrated in strength, endurance, and team sports
• Works primarily by blocking adenosine receptors, reducing perception of fatigue
• Effects begin 30–60 minutes after ingestion and last 3–5 hours

In practice, for an 80kg individual this means 240–480 mg caffeine. Most pre-workout products contain 150–300 mg per serving.

Warning: Higher doses do not mean better results. Doses above 6 mg/kg increase side effects (anxiety, heart palpitations, sleep disruption) without additional performance benefit.

Rising Stars: Evidence-Based Ingredients

Alpha-GPC (Alpha-Glycerylphosphorylcholine)

Alpha-GPC is a choline compound that crosses the blood-brain barrier and increases acetylcholine levels in the brain. Acetylcholine is an important neurotransmitter in muscle contraction and cognitive function.

Bellar et al. (2015) studied alpha-GPC's effects on physical performance:

• 600 mg alpha-GPC taken 90 minutes before testing
• Result: statistically significant improvement in lower body force (isometric mid-thigh pull test)
• Implication: alpha-GPC may support force output through neuromuscular activation

Alpha-GPC is promising but needs more large-scale studies. Typical dose: 300–600 mg.

Betaine (TMG — Trimethylglycine)

Betaine is a naturally occurring compound found in beets, spinach, and seafood. Cholewa et al. (2013) investigated betaine's effects:

• 2.5g betaine daily for 6 weeks during resistance training
• Result: improved body composition — decreased fat mass and increased lean mass
• Improved power output in some exercises

Betaine's mechanism involves osmoregulation (cellular water balance) and supporting creatine synthesis. Typical dose: 2.5g daily.

L-Tyrosine

L-tyrosine is an amino acid that serves as a precursor to catecholamines (dopamine, noradrenaline, adrenaline). It is especially interesting in the context of cognitive performance.

Scientific evidence:

• Improves cognitive performance under stress (cold, sleep deprivation, multitasking) (Jongkees et al., 2015)
• Military studies have shown positive effects on maintaining alertness and decision-making
• Not directly proven as a physical performance enhancer, but supports cognitive focus during training

Typical dose: 500–2000 mg, 30–60 minutes before training.

L-Citrulline

Already covered in depth in our dedicated article, but worth mentioning:

• Raises nitric oxide levels → vasodilation → better blood flow
• 6–8g citrulline malate before training
• Proven improvement in reps to failure and reduced muscle soreness

Beta-Alanine

Also covered separately in our beta-alanine article:

• Increases muscle carnosine levels
• Improves performance in 1–4 minute high-intensity efforts
• 3.2–6.4g daily for at least 4 weeks

Overhyped Ingredients

Not everything in a pre-workout is evidence-based:

Deer Antler Velvet

Marketed as an IGF-1 source. Reality:

• Oral administration does not significantly raise IGF-1 levels
• Clinical studies show no performance improvement
• Expensive ingredient with minimal evidence

Agmatine Sulfate

Marketed as a "super NO booster." Reality:

• Very limited human studies
• Some animal studies are promising but results do not translate directly to humans
• Insufficient evidence for performance enhancement

Proprietary Blends

This is not an ingredient but a labeling practice that should give consumers pause:

• Manufacturer shows total blend weight but not individual ingredient amounts
• Often contains "pixie-dusting" — ingredient is present but underdosed
• Transparent labeling with all quantities is always the better choice

The Trend: Transparent Labels

The most important trend in pre-workout products is not a new ingredient — it is transparency. More and more brands are abandoning proprietary blends and showing exact amounts for every ingredient.

This allows consumers to:

• Check whether ingredients are at clinical doses
• Compare products substantively, not by marketing
• Make more informed choices

Building a Science-Based Pre-Workout

If you want an evidence-based pre-workout, consider these ingredients:

Find these ingredients in our pre-workout supplements and caffeine supplements categories.

Safety Reminder

• Do not exceed recommended caffeine doses (400 mg daily for healthy adults)
• Time your pre-workout at least 6 hours before bedtime (caffeine)
• Start with lower doses and increase gradually
• Consult a doctor if you have heart issues, high blood pressure, or anxiety disorders

Summary

• Caffeine remains the most proven ergogenic substance (Goldstein et al. 2010: 3–6 mg/kg)
• Alpha-GPC (Bellar et al. 2015): promising force output enhancer, 300–600 mg
• Betaine (Cholewa et al. 2013): improved body composition and power, 2.5g/day
• L-Tyrosine: cognitive focus under stress, 500–2000 mg
• Overhyped: deer antler velvet, agmatine sulfate
• Trend: transparent labels vs proprietary blends
• Build your pre-workout with evidence-based ingredients at clinical doses

References

1. Goldstein, E. R., Ziegenfuss, T., Kalman, D., Kreider, R., Campbell, B., Wilborn, C., ... & Antonio, J. (2010). International society of sports nutrition position stand: caffeine and performance. Journal of the International Society of Sports Nutrition, 7(1), 5.
2. Bellar, D., LeBlanc, N. R., & Campbell, B. (2015). The effect of 6 days of alpha glycerylphosphorylcholine on isometric strength. Journal of the International Society of Sports Nutrition, 12, 42.
3. Cholewa, J. M., Wyszczelska-Rokiel, M., Glowacki, R., Jakubowski, H., Matthews, T., Wood, R., ... & Paolone, V. (2013). Effects of betaine on body composition, performance, and homocysteine thiolactone. Journal of the International Society of Sports Nutrition, 10(1), 39.
4. Jongkees, B. J., Hommel, B., Kühn, S., & Colzato, L. S. (2015). Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands — a review. Journal of Psychiatric Research, 70, 50–57.
5. Trexler, E. T., Smith-Ryan, A. E., Stout, J. R., Hoffman, J. R., Wilborn, C. D., Sale, C., ... & Antonio, J. (2015). International society of sports nutrition position stand: beta-alanine. Journal of the International Society of Sports Nutrition, 12, 30. Dietary supplements are not a substitute for a varied, balanced diet and healthy lifestyle.

Browse our pre-workout supplements and caffeine supplements at MaxFit.ee