pH-Balancing Mask 1L - Cadiveu Blonde Reconstructor is the Step 3 sealing mask of the Blonde Reconstructor salon system, a strongly acidic pH 2.2 to 3.0 mask that seals the cuticle and rebalances the hair's pH after bleaching, with pearl protein and lipids. Layered over the Fiber Filler Mask, its low pH contracts and closes the cuticle to lock the reconstruction in and leave the fibre smooth and sealed. It is a professional back-bar finishing step, rinsed out after ten minutes, not a home mask.

Why the pH-Balancing Mask

Bleaching leaves the cuticle raised and the hair's pH swung alkaline, which is what keeps porosity high and lets moisture and colour escape. The pH-Balancing Mask closes that out: its strongly acidic pH of 2.2 to 3.0 contracts and seals the cuticle, while pearl protein and lipids replenish what lightening stripped, reducing porosity and rebalancing pH in one step. Run as Step 3 over the Fiber Filler Mask, it locks the reconstruction in and leaves blonde hair smoother, shinier and more resistant to daily wear.

Key Ingredients

The seal comes from the strongly acidic pH of 2.2 to 3.0, which contracts the cuticle, paired with hydrolyzed pearl, sericin and keratin amino acids that condition and reinforce the fibre and shea (butyrospermum) lipids that replenish what bleaching stripped. Because it contains hydrolyzed pearl, sericin and keratin amino acids, the mask is not vegan.

What to Expect

In the ten minutes it processes, the mask brings the hair's pH back into balance, seals the cuticle and leaves the lengths smooth, glossy and easier to manage, then rinses clean. It is the finishing step of a professional chronogram rather than a standalone treatment: layered over Step 2 it locks the protein in, and the blonde reads as sealed, shiny and resilient rather than porous and dull.

Who It Is For

• Colorists and salons running the Blonde Reconstructor reconstruction protocol
• Bleached, lightened or porous blonde hair that needs its pH rebalanced and cuticle sealed
• A post-bleach or reconstruction service that wants a smooth, sealed finish

Who It Is Not For

• Home users after a quick conditioning mask: this is a professional Step 3 in a salon chronogram
• Anyone wanting a vegan formula, which this is not, as it contains hydrolyzed pearl, sericin and keratin amino acids
• A colorist who rinses Step 2 away before layering this over the lengths

Professional tip: layer this straight over the Fiber Filler Mask without rinsing Step 2 first, and use gentle heat over the ten minutes to help it work, then rinse clean. On very porous lengths the low pH does its best sealing when the mask is combed evenly from roots to ends.

How to Use

In the salon, pH-Balancing Mask works as one step of the full Blonde Reconstructor chronogram, so it is used alongside the other steps rather than on its own. Run the sequence in order, with its step in focus:

1. Step 1, Clarifying Shampoo: apply to damp hair, work into a lather, leave on for 5 minutes and rinse thoroughly (repeat if needed) to clear residue and heavy metals.
2. Step 2, Fiber Filler Mask: on clean, towel-dried hair, work in sections from the nape hairline, comb through for even distribution, then leave on for 5 minutes and do not rinse.
3. Step 3, pH-Balancing Mask: layer it straight over the un-rinsed Step 2, section and comb through, leave on for 10 minutes, then rinse clean.
4. Finish, the Blonde Lock leave-in: distribute a small amount evenly through wet or dry hair and do not rinse.

For a bleach service, add 6 g of Unbroken Blonde per 20 g of bleaching powder and mix to a homogeneous cream before you lighten, then run the reconstruction chronogram above.

Use gentle heat over the mask steps to optimize the result.

After the service, send the client home with the Blonde Reconstructor home care (Blonde Keeper Shampoo and Acidic Mask) to hold the result between visits.

Where It Fits in the Blonde Reconstructor System

pH-Balancing Mask is Step 3 of the salon system: clarify with the Clarifying Shampoo (Step 1), rebuild with the Fiber Filler Mask (Step 2), then seal and rebalance with the pH-Balancing Mask; for a bleach service, Unbroken Blonde is added to the lightener for extra fibre protection. The four sit in the Blonde Reconstructor salon range, and clients keep the result up with the Blonde Reconstructor home care.

In Short

• The Step 3 pH-sealing mask of the Blonde Reconstructor salon system: 1L, professional use
• A strongly acidic pH 2.2 to 3.0 that seals the cuticle and rebalances pH, with pearl protein and lipids
• Locks in the reconstruction over Step 2; leave on 10 minutes, then rinse
• Not vegan (contains hydrolyzed pearl, sericin and keratin amino acids); a silicone-conditioned mask