SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    8724, 8723, 8518, 8706, 8707, 8513, 8514, 
    8520, 8521, 8516, 8515, 8517
  )

Query time 0.00042

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "8.41"
    },
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 12,
      "rows_produced_per_join": 12,
      "filtered": "100.00",
      "index_condition": "(`primapearl_r_new`.`cscart_products`.`product_id` in (8724,8723,8518,8706,8707,8513,8514,8520,8521,8516,8515,8517))",
      "cost_info": {
        "read_cost": "7.21",
        "eval_cost": "1.20",
        "prefix_cost": "8.41",
        "data_read_per_join": "100K"
      },
      "used_columns": [
        "product_id",
        "product_code",
        "product_type",
        "status",
        "company_id",
        "list_price",
        "amount",
        "weight",
        "length",
        "width",
        "height",
        "shipping_freight",
        "low_avail_limit",
        "timestamp",
        "updated_timestamp",
        "usergroup_ids",
        "is_edp",
        "edp_shipping",
        "unlimited_download",
        "tracking",
        "free_shipping",
        "zero_price_action",
        "is_pbp",
        "is_op",
        "is_oper",
        "is_returnable",
        "return_period",
        "avail_since",
        "out_of_stock_actions",
        "localization",
        "min_qty",
        "max_qty",
        "qty_step",
        "list_qty_count",
        "tax_ids",
        "age_verification",
        "age_limit",
        "options_type",
        "exceptions_type",
        "details_layout",
        "shipping_params",
        "facebook_obj_type",
        "parent_product_id",
        "__variation_code",
        "__variation_options",
        "yml2_brand",
        "yml2_origin_country",
        "yml2_store",
        "yml2_pickup",
        "yml2_delivery",
        "yml2_adult",
        "yml2_delivery_options",
        "yml2_bid",
        "yml2_model",
        "yml2_sales_notes",
        "yml2_type_prefix",
        "yml2_offer_type",
        "yml2_market_category",
        "yml2_manufacturer_warranty",
        "yml2_expiry",
        "yml2_purchase_price",
        "yml2_description",
        "yml2_cpa",
        "buy_now_url",
        "spsr_product_type",
        "__is_default_variation",
        "external_id",
        "update_1c",
        "fiscal_data_1212",
        "mark_code_type"
      ]
    }
  }
}

Result

product_id product_code product_type status company_id list_price amount weight length width height shipping_freight low_avail_limit timestamp updated_timestamp usergroup_ids is_edp edp_shipping unlimited_download tracking free_shipping zero_price_action is_pbp is_op is_oper is_returnable return_period avail_since out_of_stock_actions localization min_qty max_qty qty_step list_qty_count tax_ids age_verification age_limit options_type exceptions_type details_layout shipping_params facebook_obj_type parent_product_id __variation_code __variation_options yml2_brand yml2_origin_country yml2_store yml2_pickup yml2_delivery yml2_adult yml2_delivery_options yml2_bid yml2_model yml2_sales_notes yml2_type_prefix yml2_offer_type yml2_market_category yml2_manufacturer_warranty yml2_expiry yml2_purchase_price yml2_description yml2_cpa buy_now_url spsr_product_type __is_default_variation external_id update_1c fiscal_data_1212 mark_code_type
8513 PR729 P A 1 55060.00 100 0.000 0 0 0 0.00 0 1589116888 1730974556 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8514 PR753 P A 1 75410.00 100 0.000 0 0 0 0.00 0 1589117049 1705400308 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8515 PR755 P A 1 101600.00 100 0.000 0 0 0 0.00 0 1589117282 1705400587 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8516 PR757 P A 1 90760.00 100 0.000 0 0 0 0.00 0 1589117169 1705400331 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8517 PR760 P A 1 123620.00 100 0.000 0 0 0 0.00 0 1589117324 1705400623 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8518 PR800 P A 1 47050.00 100 0.000 0 0 0 0.00 0 1589116710 1705400394 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8520 PR810 P A 1 77410.00 100 0.000 0 0 0 0.00 0 1589113847 1705400557 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8521 PR819 P A 1 78910.00 100 0.000 0 0 0 0.00 0 1589113955 1705400530 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N a:0:{} 0 0 Y 24 N Y 1
8706 040-001s P A 1 50890.00 100 0.000 0 0 0 0.00 0 0 1613333646 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N 0 0 Y 24 N Y 1
8707 040-003s P A 1 53890.00 100 0.000 0 0 0 0.00 0 0 1613333646 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N 0 0 Y 24 N Y 1
8723 PR820 P A 1 45550.00 100 0.000 0 0 0 0.00 0 0 1613333646 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N 0 0 Y 24 N Y 1
8724 PR822 P A 1 16520.00 100 0.000 0 0 0 0.00 0 0 1613333646 0 N N N B N R N N N Y 10 0 N 0 0 0 0 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 N 0 0 Y 24 N Y 1