SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    444874, 411736, 410485, 443778, 413186, 
    406992, 417005, 421337, 459209, 418678, 
    450452, 428056
  )

Query time 0.00041

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.0216566,
    "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": 12,
          "cost": 0.0216566,
          "filtered": 100,
          "attached_condition": "cscart_products.product_id in (444874,411736,410485,443778,413186,406992,417005,421337,459209,418678,450452,428056)"
        }
      }
    ]
  }
}