Efficascent Oil 100ml. by Efficascent Oil. 4.5 out of 5 stars 72 ratings. Price: $11.93 ($11.93 / Count) & FREE Shipping. Item is returnable in 30 days and restocking fee may apply. You may be charged a restocking fee upto 50% of item's price for used or damaged returns and upto 100% for materially different item. Read full return policy.