DIY Pre-Workout Recipe: Exact Scoops, Timing and Method
This is the exact-protocol companion to the build-your-own pre-workout hub: no theory you have not already read, just the recipe — grams, order, timing, and the swaps — written the way you would tape it inside a kitchen cupboard. It assumes the standard version for a healthy adult training in the morning or afternoon. The evening swap is one line long and appears twice on this page, because it is the change most readers actually need.
This is the exact-protocol companion to the build-your-own pre-workout hub: no theory you have not already read, just the recipe — grams, order, timing, and the swaps — written the way you would tape it inside a kitchen cupboard. It assumes the standard version for a healthy adult training in the morning or afternoon. The evening swap is one line long and appears twice on this page, because it is the change most readers actually need.
What is the exact recipe?
| Ingredient | Amount | Measure help | Role |
|---|---|---|---|
| Pure L-citrulline | 6 g | Heaped teaspoon ≈ 4–5 g — weigh it the first week | Blood-flow support, acute |
| Beta-alanine | 1.6 g (plus 1.6 g later with food) | Level teaspoon ≈ 3 g — use half, or weigh | Daily carnosine building; split to limit tingles |
| Creatine monohydrate | 5 g | Standard scoop in most tubs | Daily saturation; timing-flexible |
| Caffeine | 3 mg/kg (≈200 mg at 70 kg) | One 200 mg tablet, or strong coffee | Alertness and performance, acute |
| Water | 400–500 ml, cold | A large glass or shaker | Carrier; cold water blunts the tartness |
| Optional: pinch of salt / electrolytes | For sessions over 90 min or heavy sweaters | — | Fluid retention and sodium replacement |
A note on measures: spoons lie. Citrulline powders vary in density, and the difference between a level and heaped teaspoon can be 2 g — a third of the dose. Use a cheap kitchen scale for the first week until your eye learns your powder, then spot-check monthly. The one ingredient you must never scale-weigh is caffeine powder; this recipe uses tablets or coffee for caffeine, deliberately, as explained in caffeine dosage.
If your citrulline is citrulline malate 2:1 rather than the pure form, use 8 g to reach roughly 5.3 g of citrulline — the maths behind that substitution is in L-citrulline.
What is the mixing order and timing?
T-minus 60 to 45 minutes: Take the caffeine tablet with a small glass of water (or drink the coffee). Caffeine peaks in the blood at around an hour, so it goes first.
T-minus 45 to 30 minutes: Add the citrulline, beta-alanine and creatine to 400–500 ml of cold water. Stir or shake until dissolved — citrulline and beta-alanine dissolve readily; creatine monohydrate dissolves slowly and will leave a faint grit, which is normal and harmless. Drink it over 5–10 minutes rather than in one go; your stomach will thank you.
During the session: Nothing required. For sessions past 90 minutes, or hot conditions, sip an electrolyte drink — plain water plus a pinch of salt and any carbohydrate source you tolerate is the honest baseline.
Later in the day: Take the second 1.6 g of beta-alanine with a meal. This completes the 3.2 g daily total that the beta-alanine evidence is built on, with minimal tingling. On rest days: creatine 5 g and beta-alanine 3.2 g (split, with meals) still happen; citrulline and caffeine do not need to.
How do you adjust it for your body and your session?
By body weight. The only ingredient scaled by weight is caffeine: 3 mg/kg is the recipe’s anchor. At 55 kg that is ~165 mg (one tablet is close enough, or use coffee); at 95 kg it is ~285 mg (a tablet plus a coffee, or accept 200 mg — many heavier lifters find 200 mg plenty, because sensitivity varies more than weight does). Beta-alanine and creatine do not scale meaningfully across normal adult weights; citrulline’s 6 g is a fixed studied dose.
By session type. Heavy low-rep strength days lean on caffeine most; citrulline contributes least there. High-rep, circuit, interval and combat-sport sessions are where citrulline and the beta-alanine base earn their keep. Long endurance sessions: keep citrulline, halve or drop caffeine if you dose again later, and add carbohydrate and electrolytes rather than more actives.
By time of day. After roughly mid-afternoon, run the evening version: same drink, no caffeine tablet. Caffeine’s half-life (about 4–6 hours) means the standard recipe at 6 p.m. taxes the night’s sleep; the stim-free pre-workout stack exists for exactly this slot and loses nothing except the stimulant.
By experience. Week one, use half the citrulline (3 g) if powders are new to your stomach, and the split beta-alanine exactly as written. The recipe is a steady state, not a test of toughness — GI comfort decides whether a routine survives month two.
What mistakes ruin a DIY mix?
- Eyeballing caffeine. Tablets or coffee, never bulk powder, never “a bit more today.”
- Putting the whole beta-alanine dose in one glass and concluding beta-alanine is unbearable — that is a dosing error, covered in beta-alanine tingles.
- Buying citrulline malate and dosing it as pure citrulline. 6 g of 2:1 malate is 4 g of citrulline. Read the ratio, do the one multiplication.
- Adding ingredients weekly. Every extra powder is a variable. Run the base recipe for a month before judging additions like taurine or betaine.
- Chasing flavour with sugar-free sweetener loads that wreck your gut, then blaming the actives. Cold water and citrus solve most of the taste problem.
How do you batch this for a training week?
Consistency is the recipe’s active ingredient, so remove the daily friction. On Sunday, portion five dry mixes — citrulline, beta-alanine (1.6 g portion) and creatine weighed into small jars or zip bags, labelled by day. Keep the caffeine tablets with them but separate; the day you train late, the tablet simply stays in the jar, which makes the evening swap automatic rather than a decision you negotiate with yourself at 6 p.m. Weigh with the scale on a flat surface and tare between ingredients; a full batching session takes ten minutes and converts a month of good intentions into a shelf of finished decisions. Two storage rules: keep the jars dry and sealed (citrulline is hygroscopic and will clump in a steamy kitchen, which changes nothing chemically but makes scooping miserable), and keep caffeine tablets away from children exactly as you would any medicine — a caffeine tablet is a genuinely dangerous object for a small child, unlike the powders around it. Rest-day jars hold only creatine and the beta-alanine portions; making them visually different (different coloured lids, for example) prevents the classic error of drinking a training mix on a rest morning and wondering why the day feels wired.
How do you scale this recipe down for a lighter session?
Not every session deserves the full build. For technique work, mobility-plus-light-lifting days, or a second session in a day, the sensible reduction is to drop the caffeine first (it was only ever for performance intent), keep the citrulline if you enjoy the pump and blood-flow support, and leave beta-alanine and creatine untouched, because those two are daily habits rather than session ingredients. Halving the citrulline to 3 g for a light day is harmless and cheaper; skipping it entirely is also fine, since citrulline carries no loading debt. What you should not do is the inverse — saving up skipped ingredients for a mega-dose on Saturday. None of these compounds rewards binge dosing, and caffeine punishes it. The recipe’s power is its repeatability: a moderate mix you can run two hundred times a year beats a heroic one you tolerate twelve times.
Keep the written recipe where you mix, not in your head. Doses drift when they live in memory: the citrulline scoop creeps up, the beta-alanine split quietly becomes one serving, the caffeine tablet doubles on a tired morning. A card on the cupboard door — ingredient, grams, timing — freezes the protocol you decided on when you were thinking clearly, and turns every training day into a repetition rather than a fresh negotiation. Review the card monthly against your log, change it deliberately if the data say so, and write the change down with a date.
Who should not take this?
The recipe is a template for healthy adults, with these explicit exceptions:
- No caffeine version if you are pregnant, under 18, have uncontrolled blood pressure, a heart rhythm condition, or significant anxiety — and no version at all in pregnancy without medical advice (beta-alanine and supplemental citrulline lack pregnancy safety data). See the cautions in caffeine dosage.
- If you take nitrates, PDE5 inhibitors or blood-pressure medication, the citrulline component needs your doctor’s agreement first — the nitric oxide pathway is shared.
- If you take medicines that slow caffeine clearance (such as ciprofloxacin) or have kidney or liver disease, get a pharmacist or doctor to review the full ingredient list before starting.
- Competition athletes: use third-party-tested products where available (one pick above carries NSF Certified for Sport) and verify every ingredient against your federation’s current rules.
Talk to your doctor or pharmacist about your own medications before adopting any pre-workout routine — including this one.
The stack, product by product
| Product | Form | Dose | Third-party tested | Where to buy |
|---|---|---|---|---|
| BulkSupplements L-Citrulline Powder | Powder, pure L-citrulline | 6 g per serving in this recipe | Check label | Brand site Amazon |
| Nutricost Beta-Alanine Powder | Powder, unflavoured | 1.6 g in the drink + 1.6 g with food daily | Check label | iHerb Amazon |
| Thorne Creatine | Powder, creatine monohydrate | 5 g per serving in this recipe | NSF Certified for Sport | iHerb Brand site Amazon |
Prices change constantly, so we don't print them — check the current price at the retailer. We only list products that publish third-party testing (NSF, Informed Sport, or USP) where a certified option exists.
Frequently asked questions
Why is only half the beta-alanine in the pre-workout?
Because a single 3.2 g serving produces strong tingling in most people, and the benefit depends on the daily total, not the pre-workout timing. 1.6 g in the drink plus 1.6 g with food later reaches the studied daily range with far less paresthesia. If tingles do not bother you, the full 3.2 g in the drink is fine.
Can I prepare the DIY mix the night before?
The dry ingredients can be pre-portioned into daily jars or bags for the week — that is the easiest way to stay consistent. Mix with water shortly before drinking; citrulline and creatine are stable dry, and a mixed drink left overnight tastes worse and grows nothing good in a gym bag.
What can I use for flavour without sugar?
The mix is naturally tart from citrulline. A squeeze of lemon or lime, a sugar-free cordial or water enhancer, or simply very cold water handles it for most people. For sessions over 90 minutes, adding carbohydrate is a performance choice, not a flavour failure — see the notes in the method.
Why is caffeine a tablet in this recipe, not a powder?
Safety and accuracy. Pure caffeine powder is dangerously easy to overdose — a teaspoon is several grams, tens of times a serving — and kitchen scales at the 200 mg scale invite error. A 200 mg tablet (or measured coffee) doses caffeine precisely. Never weigh pure caffeine powder at home.
How do I make the evening version of this recipe?
Remove only the caffeine. Everything else — citrulline 6 g, beta-alanine split, creatine — is stimulant-free and works identically at 7 p.m. That version is expanded into a full routine on the stim-free stack page in this cluster.