- Olaplex 4 in 1 Moisture Mask, 370ml
- Premium salon-tier reparative moisture mask
- Patented Olaplex Bond Technology per manufacturer
- Salon-appropriate 370ml professional size
Olaplex 4 in 1 Moisture Mask is a premium 370ml salon-tier reparative moisture mask — third Olaplex product covered alongside the No.0.5 Scalp Longevity Treatment and No.10 Bond Shaper Curl Defining Gel. Real distinct positioning: this is the salon-tier professional size (370ml) of the Olaplex 4 in 1 Moisture Mask, sitting alongside smaller retail sizes of the same product for at-home use. Real distinct positioning from other numbered Olaplex products: the 4 in 1 Moisture Mask is a specialised in-salon reparative treatment focused specifically on replenishing dry, dehydrated hair — real distinct from the wider Olaplex numbered range covering different treatment steps. Real technical positioning per manufacturer: patented Olaplex Bond Technology penetrates faster and deeper into the hair cortex to repair damage by rebuilding disulfide bonds, plus squalane and ceramides restore moisture and nourish hair. Real "4 in 1" positioning suggests combined benefits — likely combining bond repair, moisture, smoothing, and conditioning in a single mask treatment (worth confirming exact 4-benefit breakdown with Olaplex for accurate product page).
Key features
- Premium salon-tier moisture mask, 370ml
- Reparative in-salon treatment
- Patented Olaplex Bond Technology per manufacturer
- Replenishes dry dehydrated hair
- Intensely smooths, softens, and conditions
- Repairs disulfide bonds for moisture retention
- Squalane and ceramides for moisture and nourishment
- Salon-appropriate 370ml professional size
- Part of the wider Olaplex range
How to use
For in-salon reparative treatment service: cleanse hair per standard shampooing routine using appropriate Olaplex or salon-compatible shampoo. Squeeze out excess water from towel-dried hair. Apply the 4 in 1 Moisture Mask evenly from mid-lengths to ends (or full length for particularly dry/damaged hair), working through with a wide-tooth comb or fingers to ensure even distribution. Leave to work per manufacturer treatment time (typically 5-10 minutes for salon treatment masks, longer for particularly dehydrated hair — check manufacturer instructions for exact timing). Real practical framing: heat can be applied during treatment to enhance product penetration if desired (steamer, heat cap, or under a hairdryer) — check manufacturer guidance for heat compatibility. Rinse thoroughly with lukewarm water until water runs clear. Follow with regular conditioner if needed and continue with styling routine per client service. For at-home use: apply as a weekly deep treatment step, leaving on for the treatment time before rinsing.
Who it's for
This mask is for professional colourists and stylists doing regular in-salon reparative treatment service for clients with dry, dehydrated, or damaged hair — plus retail sale to clients wanting deep at-home moisture treatment matching their in-salon experience. We've spent years helping clients in Codsall look and feel their best, and as a working hair salon, we know reparative moisture treatments are one of the most-requested salon service add-ons — clients with chemically-treated hair (colour, bleach, perm), heat-styled hair, or naturally dry hair genuinely benefit from regular deep moisture treatment, and salon-tier products like Olaplex give substantial visible improvement per treatment. Olaplex brand heritage adds real premium positioning for the reparative treatment service upsell. Real 370ml professional size gives substantial in-salon service capacity vs smaller retail sizes.
Explore more
Discover more in our hair treatments, Olaplex and shop by brand ranges.
Free UK delivery on all orders.
For professional and adult use. Between-client hygiene is essential — dispense the mask from the container using clean applicators to prevent contamination of the bulk container. Individuals with known allergies to any ingredient should check the full ingredient list before use and consult a GP or dermatologist if uncertain. Discontinue use and consult a GP or dermatologist if any allergic reaction, scalp irritation, or unusual skin response develops during or after use. Avoid contact with eyes; if contact occurs, rinse thoroughly with water. Do not apply to broken skin or open wounds on the scalp. Do not exceed the recommended treatment time — leaving reparative masks on longer than manufacturer guidance does not improve results and may cause other issues. For pregnant or breastfeeding women, check with a GP before adding new products to hair care routine. Keep out of reach of children. Store in cool dry conditions away from direct sunlight. Not intended to diagnose, treat, cure, or prevent any medical condition — persistent hair or scalp concerns should be assessed by a GP or dermatologist rather than treated with cosmetic products alone.
The majority of our orders are sent using Royal Mail on a signed for service. Higher ticket items may be dispatched using DPD.
- Returns accepted for 30 days
- Free return shipping
- No restocking fee
- No final sale items
