Packaging also matters

When you think of a dietary supplement, you probably focus on the ingredients, the effectiveness, or the product format. But have you ever stopped to think about the packaging? More and more people are wondering if the bottle their capsules come in is safe. And they're right: the packaging is the first barrier between the product and the outside world, and your choice has real implications for your health.

In this article, we debunk the most common myths about packaging materials, explain which ones are safe and why, and tell you why Sevens Nutrition chose PET.

Myth 1: “All plastics contain BPA”

BPA (bisphenol A) is a chemical compound that was used for years in the manufacture of certain plastics, especially polycarbonate. Over time, studies have shown that it can migrate into the contents and disrupt the endocrine system. Since then, regulations have been tightened.

But not all plastics contain BPA. PET (polyethylene terephthalate), widely used in food and supplement packaging, does not contain BPA nor does it require this compound in its manufacture . In fact, it has been evaluated and approved by authorities such as the EFSA and the FDA for food use.

Myth 2: “Glass is always safer than plastic”

Glass is chemically very inert, which is true. But its safety also depends on the type of lid you use. Many glass jars use metal lids with internal coatings that may have contained BPA or phthalates in the past. Additionally, glass is more fragile, heavier, and has a larger environmental footprint during shipping.

In contrast, PET is impact-resistant, lightweight, recyclable, and free of the most worrisome substances. Its stability under normal storage conditions makes it an equal or safer option than glass in many cases.

Myth 3: “Metallic materials protect the product better”

Many people think that metal containers (such as aluminum) are synonymous with superior protection. However, what few people know is that the contents never come into direct contact with the metal: an internal coating, often made of plastic, is required.

If this coating degrades or isn't food-grade, metals such as aluminum can migrate into the product. PET, on the other hand, is a single-component material, with no hidden layers or varnishes, so it doesn't rely on coatings to be safe.

The key point: it's not just the material, but how it is used

The safety of a container depends not only on the material it's made of, but also on how it's manufactured, stored, and used. Even glass can be unsafe if it breaks or if its lid is defective. Even plastic can migrate substances if it's reused improperly or if it's not approved for food use.

That's why at Sevens Nutrition we work with food-grade PET packaging, certified and adapted to our products . Because taking care of your health starts with protecting what's in your supplement.

Preview: Why did we choose PET?

In the next post, we'll delve deeper into the reasons why we chose this material over other options. We'll tell you how PET behaves in the face of humidity, temperature, and the passage of time, and why it's a solution backed by science and regulations.

Because at Sevens, every detail counts. And yes, that includes the packaging.