Measured strength
135% stronger
More force was required to break the treated fibre.
SPLIT END TREATMENT
Split ends start before the tip splits.
A split end is the visible failure point of a weakened hair fibre. Oils and silicones can smooth the edge. ANATOMY is built for the structure underneath: a three-step Molecular Reconstruction protocol independently measured to increase tensile strength by 135% on bleached hair.
Strengthen split-prone lengths before the next fork travels upward.
ANATOMY® Complete Reconstruction System
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Visible evidence
Microscopy
Damaged and treated hair fibres shown side by side.
Treatment path
Three-step protocol
Prepare, reconstruct, and sustain split-prone lengths.
THE STRUCTURAL ROUTE
Treat split-prone lengths as a system.
Split ends do not begin as an isolated cosmetic flaw. Repeated chemical, thermal, and mechanical stress weakens the fibre until the tip forks. The Complete Reconstruction System addresses that wider damage sequence instead of asking one finishing product to do every job.
- Complete system: shampoo, conditioner, leave-in
- Complimentary shipping on the Complete System
- 135% stronger measured on the full protocol
Complimentary US shipping · 60-Day One-Cycle Guarantee · ★ 4.8 (766 reviews, Leave-In step)
The measured strength result belongs to the complete three-step protocol.
Step 01
Shampoo prepares weakened lengths
Cleanses without treating the first step as the whole solution.
Step 02
Conditioner reconstructs after cleansing
The deepest rinse-out reconstruction step in the sequence.
Step 03
Leave-In stays with the most fragile ends
The longest-contact step for lengths exposed to brushing, heat, and friction.
One structural problem. Three coordinated treatment steps.
INDIVIDUAL ENTRY POINTS
Choose the treatment depth your split-prone hair needs.
The complete protocol is the primary recommendation. The individual products remain available when you need a lower-friction place to begin.
STEP 01
Prepare
Molecular Pre-Construction Shampoo
Prepares damaged, split-prone hair for the reconstruction steps that follow.
$42.00
Preparation step within the full protocol.
60-Day One-Cycle Guarantee
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STEP 02
Reconstruct
Molecular Reconstruction Conditioner
The rinse-out reconstruction step for weakened mid-lengths and ends.
$42.00
Core treatment step after shampooing.
60-Day One-Cycle Guarantee
View details
STEP 03
Sustain
Molecular Reconstruction Leave-In
The longest-contact single-product entry for dry, frayed, breakage-prone ends.
$85.00
Best one-step entry if you are not starting with the system.
60-Day One-Cycle Guarantee
View detailsComplete System for the full protocol. Leave-In for the strongest one-step entry.
PRIVATE PROTOCOL
Get the split-end prevention protocol.
A concise guide to what makes ends split, how the three reconstruction steps work together, and the private first-order system offer.
01 | STRENGTH BEFORE APPEARANCE
The treatment goal is more force before breakage.
Split ends appear when a progressively weakened fibre can no longer hold together at the tip. In independent testing on bleached hair, the ANATOMY protocol increased force-to-break from 15.2 to 35.8 centinewtons. The number measures strength under tension, not temporary smoothness.
The study measured damaged hair fibres, not a cosmetic score for individual split tips.
Independent SGS Proderm study 24.0172-96. Single-fibre tensile testing before and after the complete protocol.
- Instrument
- Single-fibre tensile test
- Lab
- SGS Proderm, Schenefeld, Germany
- Specimen
- Bleached hair · before / after protocol
- Study
- 24.0172‑96
Independently measured · not a consumer panel · also −15% E‑modulus (bends further before it breaks).
Damaged fibre
After protocol
02 | UNDER THE MICROSCOPE
The frayed edge is the visible part of a deeper failure.
Microscopy shows what smoothing products can make easy to overlook: a damaged fibre has a lifted, fragmented surface. After the ANATOMY protocol, the treated fibre appears more coherent. The practical strategy is to support the length before another weak point becomes the next split.
Microscopy of damaged and treated hair fibres.
03 | SMOOTHING VS STRENGTHENING
A smoother split end is not automatically a stronger fibre.
Oils, silicones, and styling products can temporarily make a forked tip lie flatter and feel softer. ANATOMY is built for a different job: Molecular Reconstruction using Aminalyl S and Pro-amino X to form new covalent architecture at damaged sites. The aim is a fibre that holds together under more tension.
Can a treatment permanently close an existing split end?
Trimming removes an existing fork. A cosmetic product can temporarily smooth or bind the visible edge. ANATOMY's role is structural: strengthen damaged, split-prone lengths and support the fibre before another weak point progresses into a new split.
Which ANATOMY product should I use for split ends?
Choose the Complete Reconstruction System when splitting comes with chemical damage, heat styling, porosity, or repeated breakage. Choose the Molecular Reconstruction Leave-In as the strongest one-step entry because it stays on the most fragile lengths between washes.
Why does the page recommend a three-step protocol?
Because the independent tensile-strength result belongs to the complete sequence. The shampoo prepares, the conditioner performs the deepest rinse-out reconstruction step, and the Leave-In extends contact time at vulnerable lengths and ends.
THE NEXT SPLIT STARTS AT A WEAK POINT
Strengthen the fibre before the next fork travels upward.
Begin with the complete Molecular Reconstruction protocol, or start with the Leave-In when you want one high-contact step for fragile ends.
Covered by the 60-Day One-Cycle Guarantee.
Complimentary US shipping · 60-Day One-Cycle Guarantee · ★ 4.8 (766 reviews, Leave-In step)
Treat split-prone lengths
Complete three-step Molecular Reconstruction protocol