Free shipping on orders over $50 30-day money-back guarantee Loved by 30,000+ Menders worldwide · Fast, tracked delivery Easy, hassle-free returns Secure checkout Free shipping on orders over $50 30-day money-back guarantee Loved by 30,000+ Menders worldwide · Fast, tracked delivery Easy, hassle-free returns Secure checkout
Excellent 4.9 225+ Menders

Repair + straighten

Rebuild by Mend&Co

  • Repairs AND straightens in one 5-minute rinse-out mask
  • Salon-smooth results — no salon, no formaldehyde
  • Visibly stronger, sleeker, shinier hair from day one
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$86.00 $120.00 Save $34.00

20 treatments per box · results last 4–8 weeks

Net content
Ships within 24 hours — your best hair days start now.
Use it for a full month. If your hair isn't visibly smoother and stronger, send it back for a full refund — no questions.
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Repair and straighten, in one.

Triple-action repair

Repair and straighten, in one.

One rinse-out treatment that hydrates, smooths and rebuilds damaged hair from the inside out.

  1. 01

    Nourishing

    Deeply penetrates to hydrate, lifting dryness and dullness.

  2. 02

    Smoothness

    Smooths and relaxes frizz for a visibly straighter, silky finish.

  3. 03

    Strengthening

    Fills the gaps in damaged hair, reducing breakage and fragility.

The 30-day journey

What to expect, week by week

Used 2–3 times a week, here's how hair tends to look and feel as you move through your first box.

  1. Day 01

    Day 01

    First treatment

    One rinse-out and hair already feels softer, smoother and easier to manage. Frizz visibly calmer.

  2. Day 07

    Day 07

    2–3 treatments in

    Strands feel stronger and the comb glides — less snagging, with a healthier natural shine starting to show.

  3. Day 13

    Day 13

    Halfway

    Smoothing builds. Hair falls straighter and styles faster, with less heat needed.

  4. Day 30

    Day 30

    Full box

    Repaired, sleek, healthy-looking hair — the look you keep up with ongoing use.

Illustrative of a typical usage journey. Individual results vary with hair type and routine.

The repair core

The science salons call hair botox.

No needles, no toxins — just a targeted complex that rebuilds damaged hair from the core out.

Acetyl Hexapeptide-8 molecular structure
01

Acetyl Hexapeptide-8

Strengthens the hair's structure, reducing breakage and split ends.

Hydrolyzed Collagen + Keratin molecular structure
02

Hydrolyzed Collagen + Keratin

Fills hair gaps and rebuilds the strand's protein network.

Biotin molecular structure
03

Biotin

Boosts hair resilience and nourishes against future damage.

Botanical actives

Carefully selected, for every strand.

A short list of proven actives — chosen to nourish, smooth and protect, with nothing along for the ride.

Ginseng Root Extract

Ginseng Root Extract

Nourishes the roots, easing dryness and fragility.

Camellia Seed Oil

Camellia Seed Oil

Smooths and adds shine, reducing frizz and tangles.

Lactic Acid

Lactic Acid

Gently conditions, improving hair flexibility.

See the difference

One treatment. Visibly smoother, healthier-looking hair.

Before
After

Why Rebuild

Rebuild vs. the rest.

Salon keratin straightens but damages. Ordinary masks repair but don't straighten. Rebuild does both — in one rinse-out treatment.

Mend Rebuild Other masks
Repairs AND straightens Both — in one rinse-out mask Repair or smoothing — not both
Rebuilds from within Keratin, collagen & peptides repair the strand Surface coat that washes out
No formaldehyde or flat-iron Gentle rinse-out — no fumes or heat Salon keratin uses both
Treatments per box 20 single-use sachets 3–5 — dry out fast
Risk-free trial 30-day money-back guarantee No returns on imports
Support & shipping Real support · fast, tracked Faceless dropship · slow

FAQ

Mend Rebuild, answered.