What is Ultra Lactase 10000 FCC ALU (Tolerase™ L)?

Ultra Lactase 10000 FCC ALU (Tolerase™ L) from EssentialSeries is a dietary supplement in delayed-release vegetable capsules, based on lactase.

Lactase is an enzyme specific for lactose hydrolysis. Our formula uses Tolerase™ L, a patented beta-galactosidase from Aspergillus oryzae, designed to keep its activity in the acidic environment of the stomach, where digestion begins. Its enzymatic activity of 10000 FCC ALU units per capsule offers optimal support for people with any degree of lactose digestion difficulties, making lactose digestion easier even when consuming large amounts or frequent use.

The perfect alternative for those who don’t want to give up dairy without giving up their well-being.

Tolerase™ L – The patented lactase for an acidic environment

What makes this enzyme different?

Tolerase™ L is a patented fungal beta-galactosidase (Aspergillus oryzae), specifically optimized to work in the acidic pH of the human stomach (around 3.5 to 5.5). This sets it apart from standard lactases, whose activity drops drastically in acidic conditions and require a more neutral environment (like the small intestine).

At HSN, we’ve boosted its functions by using delayed-release vegetable capsules that protect the enzyme until it reaches its optimal physiological action point in the digestive tract.

An enzyme designed to act exactly where and when you need it. 

Double strength: 10000 FCC ALU per capsule

Ultra Lactase delivers double the enzymatic activity per capsule compared to our standard version, reaching 10000 FCC ALU units per dose. This amount meets the needs of those with very low lactose tolerance¹, or those who regularly consume dairy products or in larger amounts (like heavy athletes during bulking phases who use large quantities of dairy foods for their protein content).

While most products on the market range between 3000 and 5000 units, our standard 5000 FCC ALU lactase was already a premium vegan option. Now, with this “Double Strength” formula, we take enzymatic activity a step further, keeping the same clean label philosophy.

If you’re looking for the standard dose, you can keep using our Lactase 5000 FCC ALU.

Delayed-release capsules: action at just the right moment

Ultra Lactase 10000 FCC ALU features delayed-release vegetable capsules, a key innovation to optimize enzyme performance. This type of capsule is designed to resist immediate dissolution in the stomach, releasing its contents more controlled when physiological conditions are optimal for lactase activity.

A release technology adapted to physiology, thanks to our R&D team’s full understanding when developing this new formula; with superior results from the very first dose.

Why choose Ultra Lactase over other options?

Choosing an enzyme shouldn’t be based only on product quantity, but on real activity, stability, and quality. Ultra Lactase 10000 FCC ALU stands out for many reasons compared to most products on the market:

•  Real and declared enzymatic potency: While many lactases are expressed in milligrams (a less useful measure for enzymes), our formula declares 10000 FCC ALU units per capsule, the internationally recognized reference to measure its real action capacity.
•  Active enzyme in the acidic gastric environment: Tolerase™ L is designed to maintain its activity in the stomach’s acidic pH, something most standard lactases can’t guarantee. This allows optimal lactose breakdown from the start of digestion.
•  Delayed-release technology: Special vegetable capsules optimize the enzyme’s release timing.
•  Vegan and clean label formula: Free from allergens, no animal-derived ingredients, and no unnecessary fillers. A clear composition compatible with all kinds of diets.

Perfect if you want an extra boost of lactase power

Ultra Lactase 10000 FCC ALU is designed for those who need stronger support than usual. This formula offers an extra guarantee of activity.

Thanks to its high concentration of active enzyme and excellent performance in acidic conditions, Ultra Lactase works deeper than conventional lactases, helping you handle dairy sugar without disrupting your lifestyle.

A double dose so you can enjoy dairy.

What other products can Ultra Lactase be combined with?

Ultra Lactase can easily fit into your routine alongside other enzyme- and probiotic-based supplements.

•  With Digezyme®: A multi-enzyme complex including amylase, protease, lipase, lactase, and cellulase.
•  With Bromelain 500mg: A natural proteolytic enzyme from pineapple. It can be especially useful in diets rich in dairy proteins, for example, for users of multiple dairy protein shakes per day.
•  With GI Biotics: 11 different probiotic strains from Lactobacillus and Bifidobacterium.

These combinations allow functional synergy without interference between products.

Questions and answers:

What exactly does '10000 FCC ALU' mean?

It means each capsule contains enzymatic activity equivalent to 10000 FCC ALU units, the official measure indicating lactase’s capacity to break down lactose under standard conditions (Food Chemicals Codex). Its activity isn’t measured in milligrams but in units of functional activity.

Can I take this lactase even if I don’t know if I have lactose digestion issues?

Yes, you can take it occasionally if you suspect lactose sensitivity, especially before consuming dairy. You don’t need a formal diagnosis to benefit from its effects on lactose breakdown¹.

Does it work the same with milk, cheese, yogurt, or cream?

Yes, it works with any food containing lactose, like milk, cheese, yogurt, or cream. However, lactose amounts vary among them, so in cases of mild lactose digestion difficulty¹ and low lactose content, you might not need it.

Scientific bibliography

•  Sanders, S. W., Tolman, K. G., & Reitberg, D. P. (1992). Effect of a single dose of lactase on symptoms and expired hydrogen after lactose challenge in lactose-intolerant subjects. Clinical Pharmacy, 11(6), 533–538.
•  Bayless, T. M., Brown, E., & Paige, D. M. (2017). Lactase Non-persistence and Lactose Intolerance. Current Gastroenterology Reports, 19(5), 23.
•  Montalto, M., Curigliano, V., Santoro, L., Vastola, M., Cammarota, G., Manna, R., … Gasbarrini, G. (2006). Management and treatment of lactose malabsorption. World Journal of Gastroenterology, 12(2), 187–191.
•  Fassio, F., Facioni, M. S., & Guagnini, F. (2018). Lactose maldigestion, malabsorption, and intolerance: a comprehensive review with a focus on current management and future perspectives. Nutrients, 10(11).
•  Corgneau, M., Scher, J., Ritie-Pertusa, L., Le, D. t. l., Petit, J., Nikolova, Y., … Gaiani, C. (2017). Recent advances on lactose intolerance: Tolerance thresholds and currently available answers. Critical Reviews in Food Science and Nutrition, 57(15), 3344–3356

¹ Lactase should be taken with every meal containing lactose to achieve this effect. Lactose tolerance varies and advice should be sought regarding the role of this substance in the diet.