SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    428834, 405512, 404978, 426945, 420898, 
    422954, 444490, 425997, 453668, 448981, 
    430278, 401703
  )

Query time 0.00044

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 (428834,405512,404978,426945,420898,422954,444490,425997,453668,448981,430278,401703)"
        }
      }
    ]
  }
}