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Defining the formula of a sport supplement is much more than choosing ingredients from a list. It is a technical process that combines scientific evidence, regulatory feasibility, raw material cost, and the value proposition you want to communicate to your customer. At Akumal, we accompany our clients in this process from day one. This guide summarises what you would learn in those first conversations with our technical team.
Step 1: Define the supplement’s goal before choosing ingredients
The starting question is not “what ingredients do I want?” but “what concrete result do I want the user to achieve?”. The more specific you are, the better the resulting formula will be.
There is a huge difference between “I want to make a pre-workout” and “I want a stimulant-free pre-workout, oriented towards aerobic endurance, for middle-distance runners who train in the morning.” The second brief produces a completely different formula: caffeine-free, with beta-alanine, citrulline, sodium, and B vitamins.
Key questions for the formula brief:
- Who is your target consumer? (training level, sport, age range, gender)
- At what time of day is the product taken? (pre/intra/post-workout, morning, night)
- What is the sales channel? (gym, pharmacy, online, supermarket)
- What can the end consumer afford? (this defines the raw material budget)
- What health claims do you want to communicate on the label?
- Are there dietary restrictions to cover? (vegan, gluten-free, lactose-free, halal)
Step 2: Select active ingredients with scientific evidence
In the sport supplement market, there are ingredients with decades of research behind them and others that are pure fad without real scientific support. To build a brand with long-term credibility, you should only include ingredients with solid evidence.
- Creatine monohydrate: performance in high-intensity efforts, muscle recovery. The most studied ingredient in sports nutrition.
- Caffeine: endurance, strength, focus, reduction in perceived effort. Effective dose: 3–6 mg/kg body weight.
- Beta-alanine: delay of muscle fatigue in 1–4 minute efforts. The tingling sensation (paresthesia) is normal and temporary.
- Protein (whey, casein, plant-based): muscle protein synthesis, recovery, and training adaptation. The foundation of any sports nutrition plan.
- Citrulline malate: vasodilation, muscle pump, fatigue reduction in strength training. Effective dose: 6–8 g per serving.
- Sodium bicarbonate: buffer of acidosis in short high-intensity efforts. Highly useful for combat sports athletes and sprinters.
Step 3: Respect effective doses, the most expensive mistake
One of the most common mistakes in new brands is including many ingredients at sub-optimal doses to put a long list on the label. A supplement with 15 ingredients at 20% of the effective dose does not work, even if the label is impressive.
The informed consumer recognises a “prop blend” (proprietary blend that hides individual doses) and associates it with low quality. Transparent dosing is a selling point, not a risk.
Documented effective doses for the most common ingredients:
| Ingredient | Effective dose/day | Notes |
|---|---|---|
| Creatine monohydrate | 3–5 g | Optional loading phase (20 g/day × 5 days) |
| Caffeine | 3–6 mg/kg body weight | Avoid for sensitive individuals or late in the day |
| Beta-alanine | 3.2–6.4 g | Split into multiple doses to minimise paresthesia |
| L-citrulline | 6–8 g pre-workout | Citrulline malate 2:1 is equivalent |
| Ashwagandha (KSM-66) | 300–600 mg | Standardised extract (5% withanolides) |
| Magnesium glycinate | 200–400 mg | Better bioavailability than oxide form |
| Vitamin D3 | 1,000–4,000 IU | Check serum levels before recommending |
| BCAAs (2:1:1 ratio) | 5–10 g | Only justified in prolonged fasting |
Step 4: Keep European regulatory restrictions in mind
Not all ingredients popular in the American market are permitted in the EU. Before including an ingredient in your formula, you must verify:
- If it is included in the European positive list of authorised substances in food supplements (vitamins, minerals, botanicals…)
- If there is a regulated maximum dose (fat-soluble vitamins A, D, E, K; some minerals like iron, zinc, copper)
- If the health claims you want to use are approved in Regulation (EC) 1924/2006
- If the ingredient has specific restrictions in the destination country
Problematic ingredients in Europe you need to know about:
- DMAA (1,3-dimethylamylamine): prohibited in the EU. Still appears illegally in some imported pre-workouts.
- DMHA (2-aminoisoheptane): no EU authorisation. Same issue as DMAA.
- High-dose caffeine (>320 mg/serving): may require specific warning on the label.
- Ephedrine/ephedra: prohibited in sports supplements in Europe.
- Yohimbine: variable regulation by country. Check the specific requirements of each target market.
Our technical team carries out this regulatory verification before developing any formula.
Step 5: Consider synergies and incompatibilities between ingredients
Some ingredients mutually enhance each other’s effect when combined (synergy), while others can interfere or create stability problems in the formulation.
Documented synergies:
- Creatine + carbohydrates: postprandial insulin improves muscle creatine uptake. Useful in recovery formulas.
- Caffeine + L-theanine: L-theanine softens the side effects of caffeine (anxiety, tachycardia) while maintaining the stimulant effect. Typical ratio: 1:2 (caffeine:theanine).
- Vitamin D3 + K2: K2 improves the distribution of calcium activated by vitamin D, preventing unwanted calcification.
- Citrulline + arginine: citrulline raises plasma arginine levels more efficiently than arginine taken directly.
Incompatibilities to avoid:
- Iron + calcium in the same serving: calcium inhibits iron absorption. If including both, better in separate servings or at different times of day.
- Zinc + copper at high doses: high-dose zinc can deplete copper. If zinc exceeds 15–20 mg/day, consider adding 1–2 mg of copper.
- Unsaturated fatty acids (omega-3) + water-soluble ingredients: oxidation of fatty acids can degrade other active ingredients if not properly microencapsulated.
Step 6: Organoleptic validation, the step no one wants to skip
A technically perfect formula can fail in the market if it tastes bad, has an unpleasant texture, or does not dissolve well. Organoleptic validation is as important as the scientific one.
At Akumal, this process includes:
- Internal taste panel: our team tests the first samples and provides detailed feedback on flavour, sweetness, acidity, texture, and dissolution.
- Flavouring adjustment: we modify flavour, sweetener, and acidulant concentrations until the desired profile is achieved.
- Stability testing: the sample is subjected to accelerated temperature and humidity conditions to predict shelf life.
- Client sample: we send the approved sample for the client to test under real-world conditions.
This process may involve 2–4 adjustment rounds before reaching the final formula. This is normal and necessary.
The development process with Akumal
When a client comes to Akumal with a product idea, the formula development process follows these steps:
- Technical Briefing: meeting (in person or by video call) to define goal, target, channel, and budget.
- Formula Proposal: our team prepares one or several options with technical justification and estimated raw material cost.
- Regulatory Review: we verify that the formula complies with current European and national regulations.
- Pilot Sample: we manufacture a small sample to validate flavour, texture, and solubility under real conditions.
- Adjustment and Approval: the client tests and gives the go-ahead or asks for adjustments. This process may be repeated several times.
- First Batch Production: once the formula is approved, we produce the first commercial batch with full GMP-certified production standards active throughout.
The timeline from initial brief to first batch in hand is typically 8–16 weeks, depending on the complexity of the formula and raw material availability.
If you are weighing up whether to go with a custom formula or a standard white-label formula, we recommend reading our article on OEM vs. private label manufacturing before making the decision.
Request a free technical consultation and tell us your product idea. With no commitment, we will explain what is feasible, what it would cost, and how the development process would work.