SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    13866, 13867, 13868, 13869, 13873, 13874, 
    13875, 13897, 13898, 13909, 13910, 
    13911, 13921, 13922, 13923, 13924, 
    13925, 13944, 13945, 13951, 13952, 
    13953, 13954, 13955, 13956, 13957, 
    13958, 13959, 13960, 13961, 13962, 
    13969, 13970, 13974, 13975, 13976, 
    13977, 13978, 13979, 13980, 13981, 
    13982, 13983, 13984, 13985, 13986, 
    13987, 13988, 13989, 13990, 13991, 
    13992, 13993, 13994, 13995, 13996, 
    13997, 14021, 14022
  )

Query time 0.00100

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.10337973,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_products",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "loops": 1,
          "rows": 59,
          "cost": 0.10337973,
          "filtered": 100,
          "attached_condition": "cscart_products.product_id in (13866,13867,13868,13869,13873,13874,13875,13897,13898,13909,13910,13911,13921,13922,13923,13924,13925,13944,13945,13951,13952,13953,13954,13955,13956,13957,13958,13959,13960,13961,13962,13969,13970,13974,13975,13976,13977,13978,13979,13980,13981,13982,13983,13984,13985,13986,13987,13988,13989,13990,13991,13992,13993,13994,13995,13996,13997,14021,14022)"
        }
      }
    ]
  }
}