SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    403905, 410883, 408899, 408775, 440269, 
    435840, 444141, 410125, 453374, 429849, 
    427100, 430100
  )

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 (403905,410883,408899,408775,440269,435840,444141,410125,453374,429849,427100,430100)"
        }
      }
    ]
  }
}