Tell your provider your skin tone before a pulsed dye laser is chosen, because the AAD says darker skin is more prone to burns and dark marks after laser treatments.
The AAD wording
The AAD writes: While lasers can be used on all skin types, darker skin is more prone to burns and dark marks after laser treatments. That sentence covers lasers in general rather than pulsed dye lasers alone, so it does not rule this laser in or out.
Reading it in plain words
Two things hold together. Lasers are not off limits for any skin type, and darker skin carries a higher chance of burns and dark marks afterward. Make sure the person holding the laser knows your skin tone before the laser is chosen.
Questions for your provider about darker skin
Ask your St. Augustine provider how they treat darker skin with the laser they plan to use, and what they would do about burns or dark marks. For more on lasers and redness, see a PMC study of intense pulsed light for erythematotelangiectatic rosacea in Chinese patients and the AAD's list of skin conditions that lasers can treat.