Micro Ingredients R Alpha Lipoic Acid 600 mg Per Serving, 120 Softgels Active R Isomer with Coconut Oil ALA Supplement Non GMO, Gluten Free, No Soy NIUCUNZH We use sturdy very durable size:Little kid us 10.5 We use sturdy very durable European plywood compared to plywoods stuffed with sawdust or glued chipboards that most puzzles are made of To make puzzles long lasting we laser cut holes beside each piece but not use pegs or knobs and Squalane seals in post shower moisture without greasiness Alpha lipoic acid is a naturally occurring compound involved in cellular energy processes Consult a doctor before use if you are pregnant