Home / Devices / 7D · HAIRBEAURON 7D PLUS [STRAIGHT]
HAIRBEAURON 7D PLUS [STRAIGHT]
7D
7D SeriesStraight

HAIRBEAURON 7D PLUS [STRAIGHT]

The HAIRBEAURON 7D Plus [STRAIGHT] is the pinnacle of Bioprogramming design and capability and represents the essence of Honshitsubi and the Bioprogramming Equation for Beauty. Smoothly slide the plates through each section of hair as if brushing it. Use the device slowly and repeatedly.

(Retail: $650.00)

Pricing is shown to verified Pro accounts. Apply for access →
✓ Ships in 2–3 business days Pro account required
  • 01 7D-density flat iron — a professional mid-tier Bioprogramming™ straightener.
  • 02 Plates restructure the cuticle without water or product.
  • 03 Low-temperature operation; safe on color-treated and chemically serviced hair.
  • 04 Pairs with a Repronizer 7D Plus (or higher) for the Mitsudonose technique.
Density 7D
Temp. range 120 – 360 °F
Plate / Barrel Bioprogramming ceramic
30mm
Weight 425 g
Voltage 100–240 V AC · 50/60 Hz
Warranty 2 years US market
Origin Assembled in Japan
Authorized BTD / US

7D-density Bioprogramming™ flat iron. Clamp near the root, draw slowly through to the ends.

Do not hold on one section for more than 30 seconds at high-temperature settings.

Low-temperature setting is viable for most textures. Safe on color-treated and chemically serviced hair.

Pair with a Repronizer 7D or higher for the Mitsudonose technique.

Register within 60 days to activate the 18 Months US warranty.

The Equation for Beauty
P = λ(nD)t — Lumielina's Equation for Beauty

The power to become beautiful is a function of the density of the Bioprogramming field (D) and the time spent within it (t). Choosing a higher density is choosing a higher ceiling.

§ Why this D

Where 7D
sits.

Every Lumielina device is rated by the density of its ionic field. Higher D compresses more work into the same time — less heat exposure, more durable result. Pairs of equivalent D (Repronizer + HairBeauron) form the discipline of Mitsudonose.

Flagship
107D

The field device. Maximum density. Client hair no one else will touch.

High
27D

Fine hair that refuses to hold memory.

Pro
7D • you are here

Day-to-day professional work.

Core
4D

Entry point to the Lumielina system.

P-value ∝ D × t
Read the chapters →