Can I use vitamin E + castor oil after Derma Rolling on hairs as a serum?

you should follow our protocol, castor oil is unsafe (see link).
at home peels like cosmelan, enlighten and aerify along with dermarolling (MTS roller with anteage MD ampules weekly from emeragecosmetics.com see eye rolling package for weekly treatment) should be started now to prevent further aging. visit emeragecosmetics.com where we ship medical grade skincare all over the world AND do free virtual skincare consults daily. Proceeds benefit BLM and LGBTQ+ charities/organizations.
For facial rejuvenation, 
1) skin care with products and PRP/microneedling
2) PDT light therapy few times a month with growth factors
3) laser treatments like clear and brilliant regularly and a few times a year Fraxel/halo Viva, Co2/Erbium
4) Sculptra injections a few times a year for collagen production with fillers like juvederm/restylane/belotero/radiesse/bellafill
5) thermage/ultherapy for yearly skin tightening with or without PDO or cone based instalift threads for lifting
6) botox every 2-3 months to stop movement lines and prevent lines at rest
7) deep microneedling RF like Fractora/morpheus8 for tightening of the skin
8) Vascular laser like vbeam/excel V or BBL forever young treatment every quarter (3-4 months)
Best, Dr. Emer.