SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10956, 7063, 13631, 9852, 10334, 7496, 
    18846, 12162, 8814, 9840, 11022, 18766, 
    19582, 8472, 10462, 12172, 11092, 10638, 
    13024, 10198, 13115, 12752, 18461, 
    18462
  )

Query time 0.00128

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_products",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "rows": 24,
          "filtered": 100,
          "index_condition": "cscart_products.product_id in (10956,7063,13631,9852,10334,7496,18846,12162,8814,9840,11022,18766,19582,8472,10462,12172,11092,10638,13024,10198,13115,12752,18461,18462)"
        }
      }
    ]
  }
}