SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    6536, 6128, 2181, 29737, 41774, 1532, 
    40760, 6159, 46143, 40759, 26919, 6172, 
    41600, 6125, 26925, 46141, 6169, 14950, 
    26928, 3495, 6095, 1473, 26926, 47899, 
    6164, 26923, 6171, 26921, 6127, 6170, 
    6541, 26929
  )

Query time 0.00153

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": 32,
          "filtered": 100,
          "index_condition": "cscart_products.product_id in (6536,6128,2181,29737,41774,1532,40760,6159,46143,40759,26919,6172,41600,6125,26925,46141,6169,14950,26928,3495,6095,1473,26926,47899,6164,26923,6171,26921,6127,6170,6541,26929)"
        }
      }
    ]
  }
}