What filler would you suggest for nasolabial folds for African American Skin?

Thank you for your question.  It's impossible to make exact recommendations without assessing you in-person, or reviewing your photos.  I treat patients of diverse ethnic backgrounds in my clinic.  While ethnicity can impact facial shape and filler placement, I don't think there's necessarily a particular product that I prefer to use for my African American patients.  Generally speaking, I find that many patients who want to see improvement in their nasolabial folds (NLFs) can actually benefit from injections in their midface, to lift the cheeks and the NLFs, and contour the jawlines.  I personally prefer to use Voluma in the cheeks, as it provides excellent lift for up to 2 years.
Keloids can have a mind of their own, and it's difficult to predict what kind of trauma will induce keloid formation.  That said, the risk of keloid formation with hyaluronic acid fillers (like Juvederm and Voluma), even in keloid-prone skin, is quite low.  It would be up to you to determine whether or not it is worth the risk.  I would recommend against collagen-stimulating fillers (like Sculptra or Bellafill), as you may be at a higher risk of nodule formation with those products.  Please consider scheduling a consultation with an experienced cosmetic dermatologist or plastic surgeon to discuss your treatment options.  Best of luck!

I generally find that there is no issue with the Juvederm or Restylane family of fillers in African American skin. Keloids would not be an issue unless the jawline or neck or earlobes were being injected.

Although there are a ton of filler brands out there, most surgeons have not seen an adverse affect on African American skin. Have you considered the Juvéderm line of products? Juvéderm is a dermal filler that provides long lasting results for nasolabial folds and can restore your more youthful facial contours. However, without seeing you in person or through a photo, it is difficult to suggest the best possible solution. With your description, Juvéderm Ultra and Juvéderm Ultra Plus may be treatments that you should consider.

Thank you for your question.  I have used many of the hyaluronic acid fillers (Juvederm, Restylane, Belotero, etc) in dark skin types without incident.  I know many other expert injectors who have as well. The risk of keloids cannot be avoided when any traumatic procedure is performed, but I will say that I have never encountered that particular complication in my patients or my colleagues.  I wish I had a referral for you in your area but can't think of anyone off the top of my head. Try calling your local National Medical Association chapter for guidance. Best of luck to you!