Simulation & Stimulation Treatment: Step by Step at a Folli-Doc Centre

By Dr. Steven Goh · Reviewed 2026-10-26

Folli-Doc's Simulation & Stimulation treatment takes about three hours in four steps: a 30 to 45 minute digital scalp mapping, a 90 to 120 minute hair simulation that creates a fuller look, a 45 to 60 minute micro-impulse and red light bio-stimulation phase, and a 15 to 30 minute review with aftercare advice.

Part of the guide: Microneedling for the Scalp: The Complete Guide to Simulation & Stimulation

Before you book

Simulation & Stimulation is Folli-Doc's hero treatment. In Malay it is called Simulasi & Stimulasi. It is designed to do two things in one session: make thinning hair look fuller straight away, and stimulate the scalp. This guide walks through each step as described on the Folli-Doc process page, so you know what to expect at a Folli-Doc centre.

Before booking, it is worth asking a doctor about any sudden, patchy or painful hair loss. Treatment is not a replacement for diagnosis.

Step 1: Precision scalp mapping (30 to 45 minutes)

Your session starts with a non-invasive digital scalp analysis. Your specialist will:

• Image your scalp and map the thinning zones and density patterns.
• Look at the condition of your existing hair and scalp.
• Note the natural growth direction and texture of your hair.
• Agree a personalised plan with you.
• Talk through realistic expectations.

This is the moment to ask questions. Mention any medicines, scalp conditions, allergies, or previous treatments such as scalp pigmentation or transplants.

Step 2: Hair simulation (90 to 120 minutes)

This is where the visible change happens. Using the hair simulation device, a trained technician places Folli-Doc's "Black Hair Factor" serum into the superficial layers of the scalp with fine precision. The aim is to mimic the look of individual hair units between and around your existing hair, building up to the appearance of 60,000 hair units depending on your plan.

The technician pays attention to:

• A natural-looking hairline that suits your face and age.
• Crown density, where thinning is often most visible.
• Hair direction and texture, so the result blends with your own hair.

Folli-Doc describes the serum as bio-compatible and gradually absorbed, not tattoo ink. See our article on the black hair serum.

Step 3: Bio-stimulation (45 to 60 minutes)

Next comes the stimulation phase. Precise micro-impulses create temporary micro-channels in the scalp so that Folli-Doc's growth-activating compounds can be delivered into it. Light-based stimulation, including red light (LLLT) and photodynamic therapy (PDT), is part of this phase. Our article on why microneedling is combined with red light explains the thinking, and the microneedling guide covers it in more depth.

The aim of this phase is to support the scalp environment and existing follicles. Changes from scalp stimulation are gradual and vary between people.

Step 4: Review and aftercare (15 to 30 minutes)

At the end, you look in the mirror and see the change. Your specialist will:

• Take professional photos for a before-and-after comparison.
• Explain what was done.
• Give you aftercare instructions.
• Discuss how long the look is expected to last and how to look after it.

Folli-Doc gives the expected longevity of the simulation as 2 to 4 years with proper care. This varies between people.

How it feels

Folli-Doc describes the session as comfortable, and many people compare it to a salon visit. Sensitivity differs from person to person, so tell your technician if anything feels uncomfortable.

Aftercare in Malaysian weather

Heat, humidity, helmets and headscarves all affect the scalp. Your aftercare instructions come first, but common questions to ask before you leave are:

1. When can I wash my hair, and how?
2. When can I exercise, swim or sweat heavily?
3. Can I wear a helmet, cap or tudung straight away, and how should I keep my scalp cool and dry?
4. Which home products should I pause, and when can I restart them?

Our article on hair serum in humid weather and our home routine guide cover related questions.

What it costs

Treatment pricing depends on your plan and is explained after your consultation. Our Malaysia price guide explains what to look for in a quote.

Summary

Simulation & Stimulation is a roughly three-hour, four-step treatment: scalp mapping, simulation for a fuller look, bio-stimulation for the scalp, and a review with aftercare. It is non-surgical and you see the visual change the same day. It is not a cure, and results vary.

Part of the guide: Microneedling for the Scalp: The Complete Guide to Simulation & Stimulation