Capsules play a crucial role in the world of dietary supplements. These tiny but powerful shells contain a multitude of health-beneficial ingredients, protecting them from the external environment and ensuring targeted release in the body. But beyond their simple function as containers, capsules come in a variety of shapes and functions, each addressing specific needs.
1. The different types of capsule materials
Each capsule has its material! There are several types, so let's discover a non-exhaustive list of materials used for the manufacture of dietary supplements and analyze their specific characteristics for various applications.
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Bovine gelatin
Derived from animal collagen, bovine gelatin is the most widely used capsule material. It offers great flexibility, allowing for the creation of capsules in various shapes, sizes, and colors. Additionally, its ease of handling makes it favored by dietary supplement manufacturers, as it facilitates the production process.
The historical use of bovine gelatin in the health field is undeniable. It has played a crucial role in the production of insulin for diabetes treatment and continues to be used in many pharmaceutical and other fields. Its biocompatibility and natural enzymatic degradation in the digestive tract make it a relevant choice. (1)
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HPMC (hydroxypropyl methylcellulose)
This is the form we use. Hydroxypropyl methylcellulose (HPMC) stands out as an interesting alternative to bovine gelatin, particularly for vegetarians and vegans. But its advantages go far beyond its plant-based origin.
HPMC capsules offer better absorption as well as increased efficacy of dietary supplements. This material has a key property explaining its effectiveness: the prolongation of supersaturation. This means that it allows the medication to remain dissolved in the digestive tract for a longer period. (2)
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Starch
It is a carbohydrate found in many plants such as wheat, corn, and potatoes. Starch is not only an important source of nutrition but also an interesting capsule material for dietary supplements.
As a capsule material, it offers several advantages; renewable, biodegradable, and relatively inexpensive. On the other hand, a study also highlights that its moisture resistance may be lower than that of other encapsulation materials. This means that starch may not be suitable for moisture-sensitive dietary supplements. (3)
Note: The choice of capsule material for a dietary supplement should not be taken lightly. Each type of material has advantages and disadvantages in terms of physical and chemical properties and compatibility with the supplement's ingredients. Therefore, be sure to consult a healthcare professional before incorporating any type of dietary supplement into your regimen.
2. Release methods of dietary supplements
Dietary supplements are not just ingested; they must navigate a complex journey in our body to release their active ingredients and fulfill their beneficial mission. Let's explore together the different release methods that allow supplements to express their full potential!
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Immediate release (IR): A rapid and direct action
It is designed for supplements whose active ingredients need to be absorbed quickly and take effect without delay. As soon as they reach the stomach, these supplements dissolve and quickly enter the bloodstream. This method is ideal for addressing immediate needs or acute deficiencies.
Benefits of immediate release:
- Rapid and effective action
- Suitable for supplements sensitive to prolonged degradation in the intestine
- Ideal for short-term or on-the-spot supplementation
Examples of immediate-release supplements:
- B vitamins
- Amino acids
- Some antioxidants
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Delayed release (DR): A lasting and optimal action
This is designed for supplements whose active ingredients are sensitive to gastric acidity or require gradual absorption in the intestine. Thanks to specific coatings or innovative formulations, these supplements are released gradually over time, optimizing their absorption and providing lasting action throughout the day.
Benefits of delayed release:
- Reduction of peak blood concentration
- Optimal absorption and prolonged action
- Minimization of gastrointestinal side effects
- Promotes increased treatment adherence
Examples of delayed-release supplements:
- Minerals (iron, calcium)
- Probiotics
- Certain medications
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Modified release: A personalized and targeted approach
It encompasses a set of techniques that allow for the adaptation of active ingredient release based on various parameters, such as the pH of the digestive medium, the presence of specific enzymes, or the speed of intestinal transit. This personalized approach allows for targeting the release of actives in specific areas of the intestine, optimizing their absorption and effectiveness.
Advantages of modified release:
- Precise targeting of active ingredient release
- Improvement of absorption and effectiveness
- Reduction of side effects
- Possibility to combine several active ingredients with controlled release
Examples of modified release supplements:
- Supplements for digestive health
- Supplements for weight management
- Supplements for cardiovascular health
In conclusion, the choice of material and release method depends on several factors (properties of the supplement, individual needs, desired goals…). Don't forget that dietary supplements do not replace a healthy and balanced diet. They should be consumed as part of a healthy lifestyle and in accordance with the advice of a healthcare professional.
Don't wait any longer to take care of your health and discover our various dietary supplements.
