SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    425013, 423301, 403335, 416458, 413195, 
    452439, 456232, 409981, 422412, 444874, 
    411736, 410485
  )

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 (425013,423301,403335,416458,413195,452439,456232,409981,422412,444874,411736,410485)"
        }
      }
    ]
  }
}