8.2 Updos & Finishing Products

Key Takeaways

  • An updo starts with a foundation: clean, dry, product-prepped hair, deliberate sectioning, a backcombed base for grip, and bobby pins inserted against the scalp and into the base for security.
  • Barrel and barrel-less pinning matter: bobby pins grip with the ridged side down, and each pin is slid against the scalp and then turned into the base so the hair's weight locks it.
  • Finishing products are chosen by hold versus texture: aerosol hairspray gives a dry, workable hold; pomades and waxes give texture and separation; shine sprays add sheen without hold.
  • Humidity breaks the hydrogen bonds that hold a set, which is why anti-humidity sprays and a sealed cuticle preserve the style in damp air.
  • A final polish check — symmetry, stray ends, pin concealment, and a last light mist — separates a clean updo from a rushed one.
Last updated: August 2026

Updo Foundations: Clean, Dry, Sectioned, and Backcombed

An updo is any style that lifts hair off the neck and pins it in place — a French twist, a chignon, a braided updo, or a constructed shape. The Red Seal exam expects you to know that the finished look depends almost entirely on what happens before the first pin goes in.

Preparing the Hair

  • Clean, dry hair is the starting point. Wet hair stretches and slips, and oils on unwashed hair make pins slide out. Most updos are best built on hair washed the day before, so the hair has natural grip.
  • Apply a texturizing or grip product (a light styling spray, matte paste, or powder) through the lengths. This gives pins something to bite into.
  • Dry shampoo at the root adds grit and volume even on clean hair.

Sectioning

Sectioning maps the shape before you build it. A common updo plan is:

  • Base section: the hair that will carry the weight of the style, usually at the crown or nape.
  • Side panels: hair that will be smoothed, rolled, or braided toward the base.
  • Top section: hair that will create volume or be incorporated last.

Sectioning is not decorative — it keeps tension even and makes pinning predictable.

Backcombing for Grip and Volume

Backcombing (also called teasing or ruffing) pushes hair toward the scalp with short strokes so the hair mats slightly at the base. It does two things:

  1. Creates a cushion the pins can lock into.
  2. Builds volume at the root.

Backcomb a subsection, smooth only the very surface over the top, and pin into the cushion. Backcombing the visible surface flat would destroy the volume.

Pinning Technique: Against the Scalp and Into the Base

A bobby pin only holds when it is placed correctly. The two rules the exam tests:

  1. Ridged side down. A bobby pin has one flat side and one ridged side. The ridged side faces the scalp and grips the hair; placing it flat-side-down makes the pin slide.
  2. Insert against the scalp, then turn into the base. Slide the pin along the scalp under the section, then rotate the open end down and push it into the backcombed cushion. The hair's own weight locks the pin in place.
flowchart LR
    A[Take a subsection] --> B[Backcomb the base]
    B --> C[Smooth the surface]
    C --> D[Slide pin along scalp, ridged side down]
    D --> E[Turn pin into the cushion]
    E --> F[Pin is hidden and locked]

A common mistake is to push a pin straight down into the top of a section. That pin has no anchor and will slide out within minutes. The pin must travel along the scalp and then turn into the base.

Volume, Balance, and Symmetry

A good updo reads as a single shape, not as pinned-together lumps. Build volume first (usually at the crown), then drape the rest of the hair over and around it. Step back and check from the front, both sides, and the back before finishing:

  • Balance: the visual weight on the left and right should be close to equal.
  • Symmetry: a deliberate asymmetry can be beautiful, but an accidental one looks like a mistake.
  • Proportion: volume at the crown should flatter the client's face shape and head, not overpower it.

Common Updo Types

UpdoConstructionBest For
French twistHair gathered low at the back, twisted upward along the centre, and the edge tucked and pinned into a vertical rollClassic formal looks; medium to long hair
Chignon / low bunHair gathered at the nape, twisted or wrapped into a coil at the base, pinned flat against the headBridal, professional, and classic styles
Braided updoOne or more braids built into a crown, halo, or bun shape and pinned in placeTextured, bohemian, and long-wearing styles

Each updo relies on the same foundation: grip, sectioning, and correct pinning. The difference is the shape you build on top of that base.

Finishing Products: Hold vs Texture

After the shape is built, finishing products set it, add sheen, or add texture. The Red Seal exam asks you to choose a product for a specific goal.

ProductHoldTexture / ShineHow to Use
Aerosol hairspray (flexible or firm hold)Flexible = brushable; firm = lockedLow shineMist from 30 cm; build in layers; flexible allows restyling
Pump hairspraySofter, wetter sprayLow shineFine hair; lighter hold
Shine / sparkle sprayNoneHigh gloss or glitter finishLight mist over the finished style; avoid roots
Colour sprayNoneTemporary pigmentEvent and fashion work; brushes and washes out
PomadeMediumHigh texture, separationEmulsify in palms, work through dry hair
WaxStrongMatte, piecey textureWarm a small amount, apply to ends
Clay / fibre pasteStrong, mouldableMatte, gritty, high gripShort textured looks; excellent pin grip in an updo base
GelFirm to rigidWet-look or matte depending on formulaSleek edges, slicked-back roots, controlled ridges
Styling creamLightSoft, natural sheenSmooth flyaways and define waves
SerumNoneHigh shine, frizz controlA drop or two on ends only; too much looks greasy
Volumizer / root sprayLightMatte lift at the baseSpray at the root before drying to build height
Texturizing sprayLight-mediumMatte, gritty, undoneMist through mid-lengths for grip and separation
Dry shampooNone (adds grip)MatteAt the root on clean hair to create the grit an updo needs
Thermal protectorNoneVariesBefore any hot tool; it reduces moisture loss but does not make hair heat-proof

The RSOS splits these into styling aids (used to build the shape — thermal protector, serums, gels, mousse, pomade, clays, wax, volumizers, dry shampoo, root sprays, texturizing sprays, fibre paste) and finishing aids (used to lock or decorate the finished shape — flexible-hold sprays, firm-hold sprays, sparkle sprays, colour sprays). Exam questions usually give you a goal ("grip for pins", "shine without hold", "lift at the root") and ask for the product, so learn them by what they do, not by brand.

Aerosol vs Pump Hairspray

Aerosol hairspray dispenses a dry, fine mist. It dries almost on contact, so you can mist, adjust, and mist again — it stays workable. It is the standard for updos because it sets the shape without wetting it down.

Pump hairspray dispenses a wetter spray. It gives a softer hold but can weigh fine hair down if over-applied and is less forgiving if you need to re-shape after spraying.

For the exam: aerosol = dry, workable, standard for updos; pump = softer, wetter, lighter hold.

Pomades, Waxes, and Creams

  • Pomade gives separation and a controlled, slightly shiny finish — ideal for piecey texture on short hair or defined ends on an updo.
  • Wax is firmer and matte; it is best for short, textured looks and for taming ends without adding shine.
  • Styling cream is the lightest of the three; it smooths flyaways and adds a natural sheen without much hold.

Humidity and the Hydrogen Bond

Humidity is the enemy of a finished style because of how hair holds its shape. A thermal or wet set works by breaking and re-forming hydrogen bonds inside the hair. When the hair cools or dries in the new shape, those bonds lock the style in place.

In high humidity, water vapour enters the hair and breaks those hydrogen bonds again. The set relaxes, the cuticle lifts, and the hair reverts toward its natural pattern — the classic frizz and loss of curl.

Defending Against Humidity

  • Anti-humidity hairspray contains polymers that form a film around each strand, blocking moisture from entering.
  • Seal the cuticle first: a smooth, closed cuticle absorbs less water. A light pass of the flat iron, a shine spray, or a silicone-based serum all help close the cuticle before the anti-humidity spray is applied.
  • Apply anti-humidity spray as the final step, after the cuticle is sealed, so it sits on the outside of the style.

The sequence matters: seal first, then shield. Reversing it traps moisture inside the hair.

Final Polish Checks

Before the client leaves the chair, run through this checklist:

  1. Symmetry — check front, both sides, and back in the mirror.
  2. Stray ends — tuck or trim any hairs that have slipped out of the shape.
  3. Pin concealment — no pin should be visible. If a pin shows, re-seat it under the hair.
  4. Tension test — gently tug the shape. It should not shift; if it does, add pins into the base.
  5. Final mist — one light, even layer of finishing spray to lock the shape.

A clean updo is the difference between a client who takes photos and a client who comes back for every event.

Loading diagram...
Updo Build and Finish Sequence
Test Your Knowledge

When inserting a bobby pin into an updo, which orientation and path is correct?

A
B
C
D
Test Your Knowledge

A client wants a soft, workable hold on a finished updo and may need minor adjustments after spraying. Which product is the best choice?

A
B
C
D
Test Your Knowledge

Why does high humidity cause a finished style to frizz and lose its set?

A
B
C
D