I built these cabinets and tops for my home, sealed with danish oil but I've moved onto using only mineral oil to rejuvenate. I've used Howards before and also plain mineral oil on butcher blocks plenty, Howards gives things a bit of a orange warm glow, plain mineral oil just moisturizes and is a bit of a secret in the countertop biz. You'll have to keep re applying somewhat frequently with both those products. Danish oil DOES have polyurethane in it which is good to create a lasting seal, but its not quite durable enough for a countertop IMO for daily, hard use. You can apply a polyurethane over the danish oil also, read the instructions on the danish oil. A couple coats of polyurethane will be the most durable finish. I prefer to avoid any finish that is too glossy, consider satin/semi gloss etc..