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Season 1: Questions from the Community

Combinations & Existing Routines

Dr. Manfred Groeppel, Prof. Dr. Alexander Steinkasserer 25.05.2026 01:36

In summary

  • A suitable alternative to minoxidil after a hair transplant 
  • Combination with minoxidil is possible: both modes of action are compatible and even synergistic 
  • Also combinable with finasteride and scientifically sound 
  • Do not apply topical products at the same time: stagger morning and evening, or let the first product dry completely 
  • Microneedling: only apply the serum after any wounds have fully healed
FAQ

Combinations & Existing Routines

Can the 8T3 Essentials Hair Serum be used after a hair transplant?
Yes. After a transplant, continued use of hair growth products is recommended. The 8T3 Essentials Hair Serum is a suitable alternative to minoxidil.
Can the 8T3 Essentials Hair Serum be used alongside minoxidil?
Yes. The modes of action are compatible and even synergistic. Minoxidil dilates blood vessels; 8T3 works through a different mechanism. Neither interferes with the other.
Is a combination with finasteride possible?
Yes. The combination is possible and makes sense from a scientific perspective.
Is the 8T3 Essentials Hair Serum compatible with caffeine tinctures or rosemary water?
The combination is recommended, but not at the same time. Morning and evening is ideal. If that is not possible, the first product should be completely dry before applying the next.
Is it advisable to use the 8T3 Essentials Hair Serum alongside microneedling?
Theoretically possible, but not simultaneously. If wounds form during microneedling, wait until they have healed completely before applying the serum.

Description

After a hair transplant, continued use of hair growth products is standard. The 8T3 Essentials Hair Serum is a suitable alternative to minoxidil in this context. The two can also be used in parallel: minoxidil dilates blood vessels, while 8T3 works through a different mechanism. The modes of action are compatible and, according to the experts, even synergistic. 

Combining the serum with finasteride is also possible and scientifically sound. For any combination of topical products, the rule is simple: do not apply at the same time. Morning and evening is ideal. If that is not possible, the first product should be fully dry before the next is applied. 

Microneedling can work alongside the serum, but not at the same time. If wounds form, wait until they have healed before applying the serum.

Experts

Dr. Manfred Groeppel
Dr. Manfred Groeppel
Prof. Dr. Alexander Steinkasserer
Prof. Dr. Alexander Steinkasserer
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