SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10202, 10198, 10496, 10190, 10193, 10194, 
    10195, 10095, 12629, 12627, 12628, 
    10142, 10143, 10141, 10137, 10138, 
    10139, 10134, 10135, 10603
  )

Query time 0.00170

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 20,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (10202,10198,10496,10190,10193,10194,10195,10095,12629,12627,12628,10142,10143,10141,10137,10138,10139,10134,10135,10603)"
    }
  }
}