SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    444676, 414802, 433182, 441236, 442349, 
    413775, 421121, 449116, 415507, 430647, 
    452052, 445229
  )

Query time 0.00039

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 (444676,414802,433182,441236,442349,413775,421121,449116,415507,430647,452052,445229)"
        }
      }
    ]
  }
}