Understanding supplement doses: active ingredient, raw material, elemental dose and standardized extract
In brief. Two supplements can both display “300 mg” and provide completely different things. A number may refer to the mass of a raw material, the amount of an elemental nutrient, the dose of a botanical extract or the mass of a standardized branded ingredient. To compare correctly, always ask: 300 mg of what, in which form, providing what amount of the relevant nutrient or marker, and at what dose was the ingredient actually studied?
Why can milligrams be misleading?
A milligram is a unit of mass. It does not describe concentration, bioavailability, standardization or level of evidence. Comparing supplements only by the size of the number on the label can therefore be misleading.
A formula may use a mineral form in which the nutrient itself is only a fraction of total mass, a botanical extract standardized to a marker, or a branded ingredient whose clinical trial used a specific dose. In each case, the same “mg” answers a different question.
Six concepts to keep separate
| Concept | What the number means | Question to ask |
|---|---|---|
| Raw-material mass | Total weight of the compound or ingredient added | What is its actual composition? |
| Elemental dose | Amount of the mineral/nutrient within its compound | How much magnesium, zinc, etc. is actually provided? |
| Extract dose | Mass of the botanical extract | Which plant part, process and composition profile? |
| Standardization | Guaranteed content of one or more markers | Is the marker only a compositional indicator, or has it itself been linked to the studied result? |
| NRV | Percentage of a nutrient reference value used for labelling | Do not confuse it with an effective dose or upper limit |
| Studied dose | Amount tested in a specific protocol | Do the ingredient, dose and population match the product and question? |
Example 1: 562.5 mg of bisglycinate is not 562.5 mg of magnesium
In a mineral salt or chelate, magnesium represents only a fraction of the total mass. Ressource™ provides 562.5 mg of TRAACS® / Albion® magnesium bisglycinate, corresponding to 56.25 mg of elemental magnesium. Régénère™ provides 300 mg of bisglycinate, corresponding to 30 mg of elemental magnesium.
| Product | Raw material | Elemental magnesium | NRV |
|---|---|---|---|
| Ressource™ | 562.5 mg bisglycinate | 56.25 mg | 15% |
| Régénère™ | 300 mg bisglycinate | 30 mg | 8% |
To compare nutritional magnesium intake, the elemental amount is the central figure. The mass of bisglycinate remains useful for documenting the raw material, but it should not be presented as though it were pure magnesium.
Example 2: 30 mg of saffron standardized to 0.40% safranal
A 30 mg saffron extract standardized to 0.40% safranal theoretically corresponds to 0.12 mg of safranal, or 120 µg: 30 mg × 0.004 = 0.12 mg.
Standardization guarantees a defined compositional parameter from batch to batch. It does not mean that safranal is the only molecule responsible for an effect, or that two 30 mg saffron extracts are clinically interchangeable. Plant part, process, crocins and other characteristics can differ.
Example 3: 200 mg of ExceptionHYAL® Star
ExceptionHYAL® Star illustrates another logic: 200 mg is the daily dose of the hyaluronic-acid raw material used by Eclo. A published trial specifically evaluated 200 mg/day of ExceptionHYAL® Star for 28 days in a randomized, double-blind, placebo-controlled protocol involving 60 women with mild to moderate signs of skin ageing.
The strongest information is therefore not simply “200 mg”, but the match of ingredient identity + dose + protocol. A different hyaluronic acid at 200 mg is not automatically equivalent.
Example 4: Reggenerate™ at 300 mg
Reggenerate™ is a raw material derived from eggshell membrane. Eclo uses it at 300 mg/day in the relevant products. To interpret the level of evidence, we need to check whether cited data actually concern Reggenerate™ at a comparable dose and distinguish accessible scientific publication from proprietary supplier studies.
The figure of 300 mg cannot be directly compared with several grams of collagen peptides from another source as though mass alone determined the effect. Composition, matrix, processing and literature are different.
Example 5: SkinAx²™ at 150 mg
SkinAx²™ was evaluated in a human study published in 2016 in 35 women aged 40 to 70 with a dull complexion. The dose was 150 mg/day for eight weeks. The study was open-label, without a placebo group: each participant served as her own control. The authors reported, among other findings, a 25.9% increase in measured luminosity and an overall 18.0% reduction in facial imperfections assessed in the protocol.
This publication provides human data directly related to SkinAx²™, but its design requires more caution than a randomized controlled trial. The study was funded by Activ’Inside, supplier of SkinAx²™, and all three authors were affiliated with Activ’Inside.
Example 6: Céramosides™ at 30 mg
The literature on wheat polar-lipid complex shows how a small raw-material mass can be the full protocol dose. In the randomized, double-blind, placebo-controlled trial published in 2017, the WPLC-P powder form was given at 30 mg/day for 60 days. Outcomes included hydration, TEWL, elasticity, roughness and other skin parameters.
A newer randomized, double-blind, placebo-controlled trial published in 2024 again studied a wheat polar-lipid complex in women with dry skin and mild to moderate signs of ageing. The methodological lesson is the same: 30 mg of one defined extract cannot be compared with 30 mg of another substance simply by mass.
What is an NRV?
The nutrient reference value provides context for vitamin and mineral intakes on European food labels. 100% NRV means the serving provides the full reference value used for that labelling.
An NRV is not a minimum effective dose, a maximum safe level, a precise individual requirement or a guarantee of clinical benefit. Upper safety limits, where they exist, belong to a different scientific framework.
When can a European health claim be used?
Nutrition and health claims are regulated. Simply listing a nutrient in the ingredients is not enough: the product must meet the conditions of use for the claim. Regulation (EC) No 1924/2006 governs these claims; Regulation (EU) No 432/2012 establishes, among other things, a list of authorized health claims.
Eclo therefore distinguishes amount present, % NRV and regulatory eligibility for a claim.
Is a dose used in a study the “minimum effective dose”?
Not necessarily. A trial showing a result at 200 mg documents what happened in that protocol at 200 mg. It does not demonstrate that 199 mg would be ineffective, or that 400 mg would be twice as effective. A dose-response relationship requires data that actually compare multiple doses.
The wording “studied dose” is therefore generally more accurate than “proven effective dose” when an efficacy threshold has not been characterized.
Why can patented or branded ingredients be useful?
A brand name is not evidence of efficacy. It can improve traceability: specifications, process, standardization, analytical controls and the ability to check whether the material sold matches the material studied. That correspondence is a methodological advantage, not permission to repeat every supplier claim.
Eclo’s rule for comparing two formulas
- Compare the identity of the ingredients.
- Compare their chemical or botanical form.
- Compare the relevant quantity: elemental dose, extract dose or dose of the studied ingredient.
- Check the standardization and what it means.
- Compare the product dose with the dose in the corresponding protocol.
- Never use the milligram number alone as a quality score.
What we know — and what it does not allow us to conclude
- Documented: raw-material mass and elemental dose can differ greatly.
- Documented: standardization defines a raw material more precisely without making all extracts equivalent.
- Documented: NRVs are labelling reference values, not universal efficacy thresholds.
- Do not extrapolate: a studied dose is not automatically a minimum effective dose.
- Do not extrapolate: more milligrams do not automatically mean more benefit.
Frequently asked questions
Are 500 mg of one ingredient necessarily “stronger” than 100 mg of another?
No. Milligrams compare mass, not the biological potency of different substances.
Does 100% NRV mean “optimal dose”?
No. NRV is a labelling reference. It is neither a clinical efficacy threshold nor a maximum safe level.
Is a standardized extract automatically clinically proven?
No. Standardization describes controlled composition. The clinical evidence then depends on studies conducted with that exact extract.
Is a study dose the minimum effective dose?
Not without a dose-response study. It is first and foremost the dose tested in that protocol.
Sources
- Regulation (EC) No 1924/2006 — nutrition and health claims
- Regulation (EU) No 1169/2011 — consumer information and NRVs
- Regulation (EU) No 432/2012 — authorized health claims
- ExceptionHYAL® Star trial — 200 mg/day, 28 days
- Dumoulin et al., 2016 — SkinAx²™, open-label study, 150 mg/day
- Bizot et al., 2017 — wheat polar-lipid complex, 30 mg/day for the powder form
- Kern et al., 2024 — wheat polar-lipid complex
- Balchem / Albion® Minerals — TRAACS® list
Read next
Magnesium bisglycinate and elemental dose · Saffron 30 mg and standardization · ExceptionHYAL® Star 200 mg · SkinAx²™ 150 mg · Céramosides™ 30 mg · How to read a clinical study
Method note: Eclo composition figures are stated per daily dose of the relevant products. The current regulatory product label remains the reference if a formulation changes.
Last scientific review: 27 August 2026.