For deep conditioning of your wigs, especially human hair wigs, an intensive recovery mask can provide the necessary nourishment and hydration. Here are a few recommended products:

1. Ellen Wille Intensive Recovery Mask: This mask is designed to restore moisture and vitality to human hair wigs. It's suggested to use it every third hair wash for optimal results .

2. R&Co's Television Shampoo and Conditioner: Along with Olaplex's No. 7 Hair Oil, these products are recommended by celebrity hairstylist Justin Scott to maintain human hair wigs in good condition .

3. Hair Mask by Briogeo: Known as "Don’t Despair, Repair!", this mask is loved for its ability to lock in moisture and improve shine. It's free of sulfates, silicones, and parabens and is suitable for all hair types .

4. Davines Nounou Hair Mask: This reparative mask contains tomato extract and jojoba oil, ideal for hydrating thick, dry hair .

5. TONYMOLY Haeyo Mayo Hair Nutrition Pack: This nourishing pack contains yolk extracts, shea butter, and macadamia seed oil, which improve hair elasticity and seal split ends .

6. Eva NYC Therapy Sessions Hair Mask: This mask is suitable for all hair types and includes keravis protein to strengthen and revitalize dry and damaged hair .

7. Living Proof Restore Mask Treatment: A weightless formula that restores moisture to healthy levels without weighing the hair down, making it a good choice for fine hair .

When using a mask on your wigs, always follow the manufacturer's instructions for the best results. Deep conditioning treatments are typically recommended every 2-4 weeks, depending on the wigs type and your specific needs.