Broccoli in Focus: Sulforaphane with Active Myrosinase

Over 500 customers have already rated our broccoli capsules – averaging 4.43 out of 5 stars. In this product spotlight, we show you exactly what's inside: an extract standardized to at least 10% sulforaphane from young broccoli sprouts, combined with active myrosinase, the enzyme that releases the plant compound in the first place. Many broccoli supplements lose exactly this enzyme during processing – ours naturally retains it. Broccoli and its sprouts are among the most-discussed vegetables in food supplements today – we'll show you what our extract specifically delivers. Composition, production, dosage and quality: we lay it all out factually and without health claims, so you can judge for yourself whether the product is right for you.

What's in our broccoli capsules?

Each capsule contains 500 mg of extract from young Italian broccoli plant sprouts, obtained at a ratio of roughly 30:1. For the daily dose of two capsules, that means around 30 grams of fresh broccoli sprouts are processed into 1,000 mg of extract. The extract is standardized to a guaranteed content of at least 10% sulforaphane – about 50 mg per capsule, or 100 mg for the daily dose. Standardization means the content is fixed on the label and doesn't vary from batch to batch, unlike unspecified “broccoli powder.”

The extract is produced using a two-stage process: once with pure water for the water-soluble compounds, and once with food-grade alcohol for the fat-soluble ones. No chemical solvents are used. The dried extract then goes into our own plant-based capsule shell made from hydroxypropyl methylcellulose – vegan, with no animal gelatine. The ingredient list stays deliberately short: broccoli extract and the plant-based capsule shell, nothing else. You won't find added fillers, colourants, carrageenan or PEG.

Compared to loose powder, capsules have a practical advantage: no taste to get used to, no scale, no mixing. You take a fixed amount with water, and the amount and sulforaphane content per capsule stay constant – regardless of how much fresh broccoli happens to be in your fridge or how long homegrown sprouts take to grow.

Sulforaphane and myrosinase, briefly explained

Sulforaphane belongs to the isothiocyanates, a group of sulphur-containing plant compounds that give cruciferous vegetables like broccoli their characteristic, slightly sharp taste. Cauliflower, Brussels sprouts, kale and rocket belong to the same plant family. Young broccoli sprouts, though, are an especially rich source of the sulforaphane precursor: they contain up to 100 times more of it than mature broccoli. In the intact plant, sulforaphane isn't present ready-made: only when cell structures break open does the precursor glucoraphanin meet the enzyme myrosinase, forming sulforaphane. Without active myrosinase, the precursor largely stays just that – a precursor.

This is exactly the point many manufacturers skip: myrosinase is heat-sensitive and often doesn't survive harsh processing. For more detail on how this works biochemically, see our in-depth guides on sulforaphane from broccoli and on the myrosinase enzyme.

Active myrosinase: what makes our extract different

Many broccoli supplements on the market supply glucoraphanin but no active myrosinase – it's simply been destroyed during processing. Our extract takes a different route: the active myrosinase is naturally present, because the gentle, two-stage extraction with water and food-grade alcohol doesn't destroy the heat-sensitive enzyme. That means you get both the precursor and the “converter” from the same capsule.

That's why “active myrosinase” is written directly into the product name instead of buried in the small print. For general guidance on what to look for when buying sulforaphane supplements, see our buying guide on sulforaphane and broccoli extract.

Who are broccoli capsules for?

The capsules are aimed at healthy adults who want to take in sulforaphane from cruciferous vegetables in a targeted, standardized, consistent amount – without chewing raw broccoli sprouts or growing their own every day. If you don't have time for your own sprout-growing, this gives you a practical alternative with a clearly defined content per capsule.

The product also suits anyone who already chooses food supplements by clear standardization and purity criteria, and who specifically looks for active myrosinase in broccoli extracts. The vegan capsule shell also makes the capsules suitable for vegans. Even when travelling or on a busy workday, when fresh vegetables aren't always within reach, a capsule is easy to pack and take along. The capsules aren't intended for pregnant or breastfeeding women or for children – as with any food supplement, check with a doctor first if in doubt.

Use & Dosage

The recommended intake is simple: 2 capsules daily with enough liquid, regardless of time of day. The easiest way is to build it into a fixed meal, for example breakfast – that quickly turns it into a routine. A pack of 180 capsules lasts around 90 days with regular use. Don't exceed the stated daily amount; more capsules bring no extra benefit, just higher consumption.

Store the capsules in a cool, dry place, protected from direct sunlight and heat, and keep them out of the reach of young children. Food supplements do not replace a balanced, varied diet. If you regularly take medication, are pregnant or breastfeeding, talk to your doctor before use.

What to look for when buying

When comparing broccoli and sulforaphane supplements, a few concrete criteria help you – and they're exactly what we built our extract around:

• Standardized content instead of a vague figure. “500 mg broccoli extract” without a percentage says little. Our capsules state a clear, guaranteed value: at least 10% sulforaphane.
• Active myrosinase stated on the label. If nothing is said about it, it usually isn't there anymore. Ours naturally retains it as part of the extract.
• Sourced from sprouts, not mature broccoli. Broccoli sprouts deliver significantly more sulforaphane precursor than mature broccoli – our extract comes from young Italian broccoli plant sprouts.
• Independent lab testing. Every batch is tested for purity and active-compound content; the current lab report is on file, and we send a detailed analysis on request.
• Short ingredient list. Just extract and plant-based capsule shell – no unnecessary fillers or colourants, free from carrageenan and PEG.
• Check the capsule shell. Animal gelatine or plant-based shell? Ours is made from vegan hydroxypropyl methylcellulose.

The extract has always been produced in Germany under strict standards.

Honestly assessed

Sulforaphane is one of the most-discussed plant compounds of recent years, and research is studying it intensively. But no health claims are currently authorised in the EU for sulforaphane or broccoli extract – so we describe origin, standardization and processing instead of promising you an effect. If you already regularly eat broccoli, cabbage or other cruciferous vegetables, you're already getting some of these plant compounds through your diet; the capsules are a concentrated, standardized addition to that, not a replacement for vegetables on your plate. Fresh broccoli or homegrown sprouts also deliver these plant compounds bundled with fibre and other nutrients from the plant – an extract doesn't do that. It adds a standardized, convenient portion to an already vegetable-rich diet, but doesn't replace it.

Across 519 ratings, the average is 4.43 out of 5 stars, with roughly two-thirds full 5-star ratings. Tolerability scores best (4.81 average), followed by perceived quality (4.68). As with any product, there are a few more critical voices too, for instance about getting used to it in the first few days – that belongs to an honest assessment.

Matching products from Scheunengut

This spotlight is about exactly one product: our broccoli capsules with at least 10% sulforaphane and naturally active myrosinase, 180 capsules at 500 mg of extract each, from young Italian broccoli plant sprouts. A pack costs €22.99 and lasts around 90 days at two capsules a day. Made in Germany, lab-tested, vegan, and free from unnecessary additives. You'll find the product card right below this article.

Frequently Asked Questions (FAQ)

How much sulforaphane is in one capsule?

Each capsule contains 500 mg of extract from young broccoli sprouts, standardized to at least 10% sulforaphane – about 50 mg per capsule, or 100 mg at the recommended daily dose of two capsules.

Why is active myrosinase so important?

Myrosinase is the enzyme that converts the precursor glucoraphanin into sulforaphane in the first place. Many extracts lose this heat-sensitive enzyme during processing. In our extract, active myrosinase is naturally present – one reason it's named directly in the product title.

How many capsules do I take per day?

The recommended intake is 2 capsules daily with enough liquid, regardless of time of day. A pack of 180 capsules lasts around 90 days. Don't exceed the recommended daily amount.

Are the broccoli capsules vegan?

Yes. Both the extract and the capsule shell made from hydroxypropyl methylcellulose are entirely plant-based, with no animal gelatine. The ingredient list is limited to broccoli extract and the plant-based capsule shell.

Where does the extract come from and how is it made?

The extract is obtained from young Italian broccoli plant sprouts, using a two-stage process with pure water and food-grade alcohol, without chemical solvents. It has always been produced in Germany under strict standards.

Is every batch tested?

Yes. All raw materials and the finished product are tested per batch in independent laboratories for purity and active-compound content. The current lab report is on file, and we send a detailed analysis report on request.

How do customers rate the product?

519 ratings are currently on record, averaging 4.43 out of 5 stars, with 516 verified purchases. Tolerability is rated especially well, with an average of 4.81 out of 5.