I am writing with good intentions to give five stars but with a strong suggestion to pay attention to something for your safety at the end:
I bought Jasmin (full size), Rhubarb (10ml), and the Limited edition Sinuous Lily (Full size).

First: They clean properly.

Second: The first ingredient (thus the one with the highest content) is calcium carbonate, which is not the well-known baking soda. It has a mild abrasive action without damaging the enamel. Indeed, I saw superficial stains from green tea being removed within the first ten uses, but we are talking about a very superficial action, which means that this ingredient is not a whitening agent.
Having plenty of time to dedicate, I combined the Marvis toothpaste with the CS 1006 Curaprox toothbrush and tried to mimic the dentist during cleaning. Indeed, a very good home cleaning was achieved.

Third: Whatever flavor you choose, it is initially combined with something intensely sweet, very sweet, which at first 'overwhelms' you. It is the sweetener xylitol, a substance that strengthens the enamel and also prevents dental erosion (cavities). This overwhelming sweetness and the initial aroma of the toothpaste soon fade, leaving only the freshness of mint.
The Rhubarb flavor, for example, starts with a relatively sweet fruity aroma and then a nice freshness remains in the oral cavity for one to two hours.
The Jasmin flavor starts as you would expect jasmine to smell and then leaves a sense of freshness but less so compared to Rhubarb (I would not buy Jasmin again).

Fourth: They all contain fluoride but not the same amount and not 1450ppm. They range between about 900 and 1100 ppm. (For example, Cinnamon has 0.20% while Jasmin has 0.24%).

To see the fluoride conversions from % to ppm, check here: https://www.colgateprofessional.com.au/content/dam/cp-sites/oral-care/professional/en-au/general/pdf/student-Fluoride-Conversions.pdf

Fifth and last: I am not writing at all about the taste of the limited edition Sinuous Lily because it came without an aluminum seal and I requested a product return.

As I was told over the phone, I will relay: The company responded to the online pharmacy that from now on, the new batches will be packaged and sold this way.

I have sent an email to Marvis headquarters. I will write an update.

[ Update 1, a few hours later after a response from a Marvis Greece representative: "... I confirm that in the Limited edition Sinuous Lily series, which is sold out, there is indeed no aluminum and it is sealed with its cap."

I add here that it simply comes to the customer closed with its cap inside a box. There is no 'seal.' Neither the cardboard box is sealed with any tape nor is the toothpaste tube sealed with an aluminum seal as I already described above.

Update 2, the next day: The pharmacy did not cooperate. They refused to accept the product return unless I paid the shipping costs for the return. The pharmacy has plenty of negative reviews on Google about how tight they are but I hadn't checked before ordering.

The issue was resolved by the company representative without irony, without aggression, without stinginess, only cooperatively: They will send another sealed one, not the Limited edition Sinuous Lily. ]

The other two Marvis, however, had an aluminum seal. Even the 10ml one.

I am uploading photos. In the limited edition you will see that the product I received is unused, the nozzle and about a centimeter of the "neck" of the packaging have no trace of toothpaste. However, for obvious reasons, it is not safe for the customer. Contamination and oxidation are much more likely to occur when there is no protective seal.

In conclusion, it is worth it for all the aforementioned positives (though it is not something supremely exceptional).

I am not curious to try them all, only three. I would like to try the Strong mint, the Aquatic, and the whitening one (not for smokers) because several reviewers mention a strong feeling of freshness.

However, I emphasize that I will ask the online pharmacy in advance to send them only if they have a safety seal. Otherwise, no.