SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    15087, 15056, 15050, 15049, 15048, 15047, 
    11134, 2816, 2815, 13609, 13514, 2214, 
    15387, 2451, 2453, 2162, 12741, 11785, 
    15298, 2806, 2805, 2710, 2709, 2712, 
    2711, 4211, 4353, 11891, 11835, 2253
  )

Query time 0.00052

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 30,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (15087,15056,15050,15049,15048,15047,11134,2816,2815,13609,13514,2214,15387,2451,2453,2162,12741,11785,15298,2806,2805,2710,2709,2712,2711,4211,4353,11891,11835,2253)"
    }
  }
}