Selenio Biomed 150 or 500 ml: choose format and packaging
Choosing between the 150 ml and 500 ml Selenio Biomed options concerns the product format and purchase management. Both product pages identify a concentration of 15 ppm; the larger bottle does not indicate a stronger formula. To decide, read the volume, number of units, included accessories, and conditions of the variant you are selecting separately.
Volume and concentration occupy two different lines
The volume tells you how much liquid the individual bottle contains. The concentration, on the other hand, describes the reference stated for the formulation. In the Selenio formats considered, you will find 150 or 500 ml alongside 15 ppm. Do not combine this information into a ranking of strength: they are different characteristics of the packaging.
The larger format may be part of your practical assessment, but it does not determine a quantity for use or an expected result. To identify the product, always look for the Selenio name, volume, and concentration together. If you are comparing a photograph with a product page, use the complete textual data and ask for clarification if something does not match.
A multi-pack variant does not change the volume of the individual bottle
On the 500 ml format page, you may encounter options with one, two, or three bottles. The number of units concerns the package purchased; each unit retains its indicated volume. Before adding to your cart, verify that the selected variant corresponds to the number of bottles you wish to receive.
Check the current price associated with your selection and the availability information. A price saved in a previous screen might refer to a different variant or changed conditions. If you want to compare purchases, use tabs opened at the same time and always keep the number of units to which the price refers next to it.
For the 500 ml format, check the dispenser before confirming
The 500 ml format is part of the Green Biomed Project, and the dispenser should not be considered automatically included. This check is distinct from the choice between one or more bottles. Read the indicated contents and check what you already possess, without deducing compatibility or the contents of the package from the image alone.
If the accessory reference is not clear, ask for confirmation by indicating the specific product and format. Do not choose a dispenser just because it resembles that of another bottle. Preparing this question before the order makes it easier to receive what you need and recognize the equipment when it arrives, especially if you are switching from the smaller format to the larger one.
Do not translate volume into a promised duration
To calculate a duration, relevant instructions and consistent usage data would be required. Volume alone does not allow for a universal number of days or months to be attributed to the bottle. Do not use an estimate read in archived content instead of the instructions on the current packaging.
Before repurchasing, check your stock, expiration dates, and the format you already have. Then open the current product page and verify the selection again. You can save the product link and a note about your preferred variant, but the final confirmation must always concern what the cart shows at that moment. Comparing formats serves to clarify the purchase while keeping personal instructions separate.

Packaging and related resources
Other useful insights
- Selenio Biomed: a routine organized from bottle to repurchase
- Selenio sublingual spray BISS+: orienting yourself between bottle and instructions
- Selenio Biomed: practical questions before and after purchase
The Biomed Guide Center allows you to explore other paths in the range based on the question that interests you.
Frequently asked questions
What is the difference in volume between the two Selenio formats?
The pages in question refer to 150 ml and 500 ml bottles. The volume should be read separately from the concentration and the number of units in the variant.
Does the 500 ml have a higher concentration than the 150 ml?
Both pages report 15 ppm. The larger format indicates more volume in the bottle, not a higher concentration.
Does a three-bottle variant change the formula?
The number of units describes the package purchased. Always verify the current variant and the volume of each bottle on the page.
Is the dispenser automatically included with the 500 ml Selenio?
It should not be taken as automatically included in the Green format. Check the equipment and the intended accessory before confirming your order.
Can I choose a dispenser based on how it looks in a photograph?
Visual similarity does not confirm compatibility. Use the product reference and ask for clarification regarding the specific accessory when necessary.
Where can I read the correct price for a multi-pack?
On the page with the selected variant and in the cart summary. Keep the price linked to the number of units purchased.
How many months does a Selenio bottle last?
Volume alone does not allow for a universal duration. Do not deduce days or months without relevant instructions and consistent usage data.
Do the instructions change automatically when switching to the large format?
You should not deduce this from the volume. Read the instructions for the specific packaging without applying rules assumed from commercial comparisons.
What should I check when I receive the bottles?
Compare the name, format, number of units, and equipment with your order confirmation. Keep the label, batch, and expiration date identifiable.
Which link should I save for a future repurchase of the format?
Save the page for the desired volume and a note about your preferred variant. Before each new order, check the current conditions and your cart selection.
Sources and further reading
For packaging data, consult the linked Biomed pages and the label of the purchased bottle. Keep these references together when comparing products or asking for clarification.