The best tattoo ink is a matter of personal preference, as different artists may have different preferences for the brands and types of ink they use. However, some of the most popular and highly regarded tattoo ink brands among tattoo artists include: Eternal Ink, Dynamic Ink, Intenze Ink & Solid Ink. Ultimately, the best tattoo ink is one that is safe, high-quality, and meets your personal preferences and needs as an artist.

The ink used in tattoos is typically made up of a combination of pigments, water, and occasionally other additives that help to make the ink spreadable and long-lasting. The pigments used in tattoo ink can be made from a variety of sources, including minerals, plants, and synthetic compounds, and are often mixed together to create a specific color or shade. If you are interested in a brand's specific methodology, please reach out to them directly.

Tattoo ink is generally considered safe when used properly and sourced from reputable manufacturers. To reduce the risk of adverse reactions, it's important to choose a reputable tattoo ink brand that has high-quality, safe tattoo inks and follows proper hygiene and sterilization procedures. Most premium brands recommend performing a patch test if you are concerned about allergies, and also consulting with your physician before getting tattooed.

The longevity of tattoo ink depends on several factors, including the quality of the ink, the skill of the tattoo artist, the location and size of the tattoo, and the aftercare practices of the person getting the tattoo. One of the most popular brands of long-lasting tattoo ink is Eternal Ink. This brand is known for its bright, vibrant colors and its ability to stand up well over time. Other brands that are known for their longevity include Intenze Tattoo Ink, Fusion Ink, and Dynamic Ink.

Whether or not vegan ink is "better" for tattooing is a matter of personal opinion and preference. However, many people choose to use vegan ink for ethical or environmental reasons, as vegan ink is made without the use of animal products or byproducts. Additionally, some people find that vegan ink has a smoother consistency and is easier to work with than traditional ink.

There are several reasons why a tattoo may not hold color, including: 

Poor quality ink: Low-quality or diluted ink may not be able to penetrate the skin properly or may fade quickly. 

Shallow needle depth: If the needle is not inserted deep enough into the skin, the ink may not be able to reach the dermis layer.

Improper aftercare: Failure to follow proper aftercare instructions, such as not keeping the tattoo clean or exposing it to sunlight, can cause the tattoo to fade or lose color.

Skin type: Some skin types may not hold ink as well as others, such as oily or thick skin, which can affect the appearance and longevity of the tattoo.

Yes, vegan tattoo ink is becoming increasingly common as more and more people are interested in ethical and sustainable tattooing practices. Vegan tattoo ink is made without the use of any animal products, such as bone char or glycerin sourced from animal fat. Many reputable tattoo ink brands now offer vegan options, and some tattoo artists exclusively use vegan ink in their practice.