There are many different types of colognes available, and the ingredients and materials used can vary widely. Here is a summary of the information found in the search results:

Positive aspects of colognes:

• Some colognes are made with natural, plant-based ingredients.
• Some colognes are packaged in eco-friendly bottles.

Negative aspects of colognes:

• Many colognes contain synthetic chemicals that can be harmful to health and the environment.
• Some ingredients to avoid include parabens, synthetic dyes, and phthalates.
• Fragrance ingredients are often not disclosed and can contain hundreds of chemicals.

Ingredients and materials:

• Some colognes are made with organic vodka, essential oils, and plant-based butters and waxes.
• Other ingredients found in colognes include alcohol, water, fragrance (natural or synthetic), and preservatives.
• Fragrance ingredients may be derived from petroleum or natural raw materials.
• Fragrance components are protected as trade secrets and are often only listed as "fragrance" on product labels.

Overall, it is important to be aware of the ingredients in colognes and to choose products that are made with natural, non-toxic ingredients whenever possible.