Which pre-workout ingredients are actually worth paying for?
Turn any pre-workout tub around and you will find a label with 18-25 ingredients on it. Most of them are there to make the list look long. The number of ingredients with strong human evidence is actually four: caffeine, citrulline, beta-alanine and creatine. The rest is either underdosed, poorly studied, or simply flavour and colour.
This article is written from a shop's point of view. We see what people in Estonia actually buy, which questions come back to us again and again, and which tubs sit on the shelf. Instead of listing twenty molecules, we will unpack the four that produce a result, a few that are conditionally useful, and the ones you are paying for without getting anything back.
One warning up front: a pre-workout does not cancel out your training plan or your sleep. If you sleep five hours and eat 1.2 g of protein per kilogram of bodyweight, 300 mg of caffeine does not fix that situation - it hides it for a few hours. A supplement is an amplifier, not a replacement.
Caffeine: the one ingredient nobody argues about
Caffeine is the backbone of any pre-workout and the only ingredient whose effect is so consistent that the science is essentially settled. An umbrella review covering 21 published meta-analyses found that caffeine improves muscular endurance, muscular strength, anaerobic power and aerobic endurance (Grgic et al., 2020). It is rare in the supplement world for evidence to point this uniformly in one direction.
The working dose is roughly 3-6 mg per kilogram of bodyweight, taken 45-60 minutes before training (Guest et al., 2021). For an 80 kg person that is 240-480 mg. Most pre-workouts sold in Estonia deliver 150-300 mg per serving, which is enough for many people and considerably more comfortable for a moderate user than chasing the top of the range.
In practice the more important question is what time you train. Caffeine's half-life in a healthy adult is about five hours, which means that of a 300 mg dose taken at 19:00, roughly 150 mg is still in your blood at midnight. During an Estonian winter, when daylight is already scarce and sleep is fragile, that is a real problem rather than a theoretical one. If you train after work at 19:00-20:00, seriously consider a caffeine-free option - we covered that in a separate piece on caffeine-free pre-workouts.
Tolerance builds fast. If you drink coffee every day and add a pre-workout before every session, within a few weeks you will feel nothing but a slightly faster heartbeat. A useful rule: use a stimulant pre-workout on two or three sessions a week, not every one. That keeps the dose lower, your sensitivity higher and the tub lasting twice as long - which, at Estonian prices, is also a financial argument.
Citrulline and the "pump" - what the studies actually show
L-citrulline is converted to arginine in the kidneys and raises nitric oxide production, which widens blood vessels. That is where the sensation people call the pump comes from. The question is whether it is anything more than cosmetic.
A review of the human literature shows that citrulline may improve performance in higher-repetition resistance work and reduce post-exercise muscle soreness, but the effect is modest and results are not consistent (Gonzalez & Trexler, 2020). This is not a caffeine-tier ingredient - it is an ingredient that gives you a couple of percent once everything else is already in place.
The critical detail is the dose. The amount that works in studies is 6-8 g of citrulline malate or roughly 3 g of pure L-citrulline. Very many commercial pre-workouts contain 1-2 g and bury it inside a large "pump matrix" where the individual amounts are not disclosed. If the label shows a blend name without numbers, assume there is too little citrulline in it. This is the single most common way a tub looks good and performs badly.
If citrulline is specifically what you are after, separate capsules are the more honest purchase. MST Amino Pump L-Citrulline + L-Arginine 60caps costs 16.90 euros at the time of writing and lets you set the dose yourself instead of hoping the tub contains enough. Among pump-focused powders we stock Kevin Levrone Shaboom Pump 385g Dragon Fruit at 26.90 euros - a stimulant-free approach that suits evening training. The gap between stimulant and pump products is bigger than the labels suggest; we walked through it in our article on pump versus stimulant pre-workouts.
Beta-alanine: the slow ingredient that demands patience
Beta-alanine is the ingredient whose tingling makes people think the product "kicked in". In reality the tingling, properly called paraesthesia, has nothing to do with performance - it is a harmless effect on nerve endings under the skin and it passes on its own.
Beta-alanine's real effect comes from raising muscle carnosine stores, which buffer the acidity that builds up during hard work. A meta-analysis showed the effect is clearest in maximal efforts lasting 1-4 minutes (Hobson et al., 2012). That means a 400 m run, a 500 m row, high-repetition leg work, a CrossFit-style circuit. It does not mean a one-rep max on the bar or long easy cardio.
The most important part, which most tubs do not tell you: beta-alanine works cumulatively. The International Society of Sports Nutrition position stand recommends 4-6 g per day for at least 2-4 weeks for carnosine stores to genuinely rise (Trexler et al., 2015). A single dose before training does nothing except tingle. If you take a pre-workout twice a week, you get practically no benefit from the beta-alanine in it - and that is exactly how most people actually use it.
The conclusion is inconvenient but honest: beta-alanine is worth buying separately and taking every day, rest days included. Inside a pre-workout tub it is mostly decoration that justifies a higher price.
Creatine in a pre-workout: good molecule, wrong place
Creatine monohydrate is, together with caffeine, the best-evidenced sports supplement in existence; the International Society of Sports Nutrition position stand describes it as safe and effective for supporting performance and muscle mass (Kreider et al., 2017). The problem is not creatine. The problem is where it sits.
Pre-workouts typically contain 1-3 g of creatine per serving, often in an exotic form that costs more and whose advantage over monohydrate has not been demonstrated in human trials. The working maintenance dose is 3-5 g per day, every day, whether or not you train. A tub you take three times a week fundamentally cannot meet that condition.
The practical recommendation for an Estonian buyer: buy monohydrate separately from the creatine category and add it yourself. Pure monohydrate costs less per kilogram than a single tub of flavoured pre-workout and lasts for months. Creatine inside a pre-workout blend is marketing, not a dosing strategy.
Electrolytes and fluid - the underrated part of Estonian gyms
This is where local context changes the advice. Estonian gyms in winter run on dry heated air that dehydrates you faster than thirst can signal. In summer, people sweat more during outdoor sessions than they estimate. In both cases performance drops before the person concludes they are "low on energy" - and then they buy a stronger pre-workout, when the actual problem was water and sodium.
Before you raise your caffeine dose, try this for two weeks: 400-600 ml of water with sodium, 60-90 minutes before training. If the fatigue at minute 45 disappears, you were not short of stimulants. The electrolytes category has enough to run this test without adding any caffeine. It is the cheapest experiment available, and it works surprisingly often.
Ingredients that are mostly filler
You will see these on labels constantly, but their evidence base at typical pre-workout doses is weak:
- Taurine - widely studied, but at the typical 500-1000 mg dose the effect in humans is inconsistent.
- Arginine on its own - poorly absorbed orally; citrulline raises blood arginine better than arginine does.
- BCAA - three amino acids out of nine; if your daily protein intake is in order, they add nothing.
- Botanical "matrices" with undisclosed amounts - if there is no number, there is no dose.
- Large B-vitamin doses - they give you bright yellow urine and nothing else unless you have an actual deficiency. If you want vitamin support, that is what vitamin complexes are for, not a pre-workout.
None of these need to be feared - they are safe. They are simply pointless to pay for.
How to read a label: three things to check
Before you look at the price, look at these three lines. They separate a serious product from a pretty tub better than any review does.
First, are the amounts written out per serving? If the ingredient list shows a blend name followed by one number covering eight ingredients, you cannot tell whether there are 3 grams of citrulline or 300 milligrams. An honest product puts a number next to each ingredient.
Second, how many scoops make "one serving"? Some manufacturers calculate all their numbers from two scoops, which means a 30-serving tub is really a 15-serving tub. Divide the price by the number of real full servings and the comparison becomes fair.
Third, where does the caffeine come from and how much is there in total? Some formulas list caffeine in two forms - anhydrous and a slower-release version - and you have to add them up yourself. This is where people accidentally take 400 mg thinking they took 200.
Fourth, an unofficial check: if the tub promises something that sounds like a drug effect, put it back. A supplement improves performance by a few percent. Anything promising more is selling you hope.
Comparison table: what is available in Estonia and what it costs
Prices are at the time of writing and may change.
| Product | Type | Servings | Price | Who it suits |
|---|---|---|---|---|
| C4 Original Pre-workout 30serv Arbuus | Stimulant, moderate caffeine | 30 | 26.90 EUR | A first pre-workout, moderate dose |
| Mutant Madness 30serv Ananass | Stimulant, strong | 30 | 21.90 EUR | Experienced user, morning training |
| Kevin Levrone Shaboom Pump 385g Dragon Fruit | Pump, stimulant-free | ~30 | 26.90 EUR | Evening training, caffeine sensitivity |
| MST Amino Pump L-Citrulline + L-Arginine 60caps | Citrulline and arginine only | 60 capsules | 16.90 EUR | Controlling the dose yourself |
| Cellucor C4 Pre-workout shot 60ml Maasikas | Ready-to-drink | 1 | 2.49 EUR | Trying it without buying a tub |
If you are looking for your first tub, C4 Original Pre-workout 30serv Arbuus at 26.90 euros is a sensible starting point: the caffeine dose is moderate and the formula is disclosed. If your tolerance is already high, Mutant Madness 30serv Ananass at 21.90 euros is stronger and cheaper per serving.
One thing the table does not show: in Estonia, shots are the best way to test whether a stimulant pre-workout suits you at all. 2.49 euros for one serving is far cheaper than a 30-serving tub that ends up in a cupboard because you did not like the flavour. The full selection lives in the pre-workout supplements category, and if you want a straight ranking we keep a separate comparison of the best pre-workouts.
Who should skip a pre-workout
This section matters more than the rest of the article.
Skip a stimulant pre-workout if: you have a diagnosed heart rhythm disorder or high blood pressure; you are pregnant or breastfeeding; you are under 18; you take medication affecting heart rate or blood pressure; you have an anxiety disorder whose symptoms caffeine worsens; you regularly train at 19:00 or later and your sleep is already broken.
Skip beta-alanine if you do not intend to take it daily - otherwise you are paying only for the tingle. Skip creatine inside a pre-workout if you already take monohydrate separately; a double dose adds no benefit. And if you are unsure whether an ingredient interacts with your medication, ask your family doctor or pharmacist - in Estonia that advice is accessible and badly under-used.
A practical protocol: how to build your own pre-workout
If you were starting from zero and wanted the maximum result for the minimum money:
- Base layer, every day: 3-5 g of creatine monohydrate, at any time of day.
- If you do intense efforts of 1-4 minutes: 4-6 g of beta-alanine per day, split into two doses (this reduces the tingling), for at least four consecutive weeks.
- On training days, in the morning or early afternoon: 3-6 mg/kg of caffeine 45-60 minutes before, no more than three times a week.
- If you are chasing a pump or training in the evening: 6-8 g of citrulline malate with no stimulants.
- Always: 400-600 ml of fluid with sodium an hour before training.
- What not to do: stack a strong pre-workout with an energy drink and coffee on the same day. We compared them head to head in a separate article.
If you would rather have one tub that covers most of this, choose a product whose label spells out every amount. Disclosed dosing is the only thing that separates a serious product from a good-looking one.
FAQ
Is pre-workout safe?
For a healthy adult who follows the label dose and has no heart or blood pressure problems, the main ingredients are well studied and well tolerated. The risks come from stacking - pre-workout plus coffee plus an energy drink - and from late-evening use. EFSA considers up to 400 mg of caffeine per day safe for a healthy adult (EFSA, 2015).
Why do I feel tingling?
That is beta-alanine. Paraesthesia is harmless and passes within 20-60 minutes. If it bothers you, split the dose in two or use a sustained-release form.
Can I take pre-workout on an empty stomach?
You can, and it acts faster, but your stomach may be irritated, especially at higher caffeine doses. If you train in the morning, try a small bite 30 minutes earlier.
Do women need a smaller dose?
The dose is calculated from bodyweight, not sex. The 3-6 mg/kg range applies to both. At a lower bodyweight that simply means a smaller amount - and this is exactly where many tubs are overdosed, because the manufacturer's scoop is measured for a 90 kg user.
Do I need a pre-workout at all?
No. If your sleep, protein and training plan are in place, a pre-workout contributes a few percent. If they are not in place, a pre-workout is a bad solution to a real problem.
How fast does tolerance build?
The stimulant sensation from caffeine often fades within 2-3 weeks of daily use, although the performance component holds up better. One week off restores sensitivity for most people.
References
Grgic, J., Grgic, I., Pickering, C., Schoenfeld, B. J., Bishop, D. J., & Pedisic, Z. (2020). Wake up and smell the coffee: caffeine supplementation and exercise performance-an umbrella review of 21 published meta-analyses. British Journal of Sports Medicine, 54(11), 681-688. https://pubmed.ncbi.nlm.nih.gov/30926628/
Guest, N. S., VanDusseldorp, T. A., Nelson, M. T., Grgic, J., Schoenfeld, B. J., Jenkins, N. D. M., & Campbell, B. I. (2021). International society of sports nutrition position stand: caffeine and exercise performance. Journal of the International Society of Sports Nutrition, 18(1), 1. https://pubmed.ncbi.nlm.nih.gov/33388079/
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. https://pubmed.ncbi.nlm.nih.gov/26175657/
Hobson, R. M., Saunders, B., Ball, G., Harris, R. C., & Sale, C. (2012). Effects of beta-alanine supplementation on exercise performance: a meta-analysis. Amino Acids, 43(1), 25-37. https://pubmed.ncbi.nlm.nih.gov/22270875/
Gonzalez, A. M., & Trexler, E. T. (2020). Effects of citrulline supplementation on exercise performance in humans: A review of the current literature. Journal of Strength and Conditioning Research, 34(5), 1480-1495. https://pubmed.ncbi.nlm.nih.gov/31977835/
Kreider, R. B., Kalman, D. S., Antonio, J., Ziegenfuss, T. N., Wildman, R., Collins, R., & Lopez, H. L. (2017). International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition, 14, 18. https://pubmed.ncbi.nlm.nih.gov/28615996/
EFSA Panel on Dietetic Products, Nutrition and Allergies. (2015). Scientific Opinion on the safety of caffeine. EFSA Journal, 13(5), 4102. https://doi.org/10.2903/j.efsa.2015.4102
