As a traveler, should you use the shampoo products provided by the hotel?

I collected the shampoo and conditioners that were provided by five hotel chains and did some testing. My test strips marked both the PH and alkalinity of each product. Although they weren’t as detailed in markings as I would like, they registered enough to tell me which ones were closer to the ideal. From my studies, I know that hair and skin are at a PH of between 4.5 to 5.5 and the ideal shampoo will be within that range. Using anything of higher PH may cause hair color to fade.

Professional Products

To start out, I tested two professional products that I have at home and use regularly. They both registered under 5.5. They are color-safe and leave my hair soft and shiny.

Ramada

This hotel provides Citrus Ginger Shampoo. The citrus and ginger made for a nice scent. It registered under 6.8 and non alkaline. I would trust this shampoo in a pinch.

Hyatt

The Hyatt provided a bottle of Portico Verbena Shampoo and a bottle of Portico Verbena Conditioner . This is the Hyatt’s own line of personal care products and has a light neutral scent.
The shampoo registered at approximately 6.8. This is too high although the conditioner registered acidic enough to bring out the shine.

Amerihost

This hotel provided a bottle of Jirmack Conditioning Shampoo. It has a nice clean scent. When I tested the PH, it registered approximately 6.8

Quality Inn

The Inn provides White Rain shampoo and conditioner.
The shampoo registered 7.2 ph but with little alkalinity.
The conditioner registered a little high as to PH and was surprisingly alkaline. This conditioner might not leave hair shiny.

Helmsley Sandcastle

The Sandcastle provides a bottle labeled conditioning shampoo. It has a pleasant fruity scent. When tested, it showed a PH of over 7.6 and a high alkalinity content. It would be fine for strong hair that is not color treated. However, with no acidic conditioner to follow it, shine would be sacrificed.

None of these shampoo products are likely to be damaging, however, there is a chance that they can cause some fading in color treated hair.
My hair color is important to me, so when I’m traveling, I plan to be sure that I always have my own professional quality shampoo and conditioner with me.