Key takeaways
- No.0 Intensive Bond Building Treatment (155 ml / 5.2 fl oz) — a pre-step applied to damp hair before No.3.
- No.3 Hair Perfector (100 ml / 3.3 fl oz, plus an 8.5 oz supersize) — the at-home bond builder.
- No.4 Bond Maintenance Shampoo in 250 ml and 1 L, alongside the No.4C clarifying, No.4D volume, and No.4P blonde-enhancing toning variants.
- No.5 Bond Maintenance Conditioner in 250 ml and 1 L.
- No.6 Bond Smoother (100 ml), No.7 Bonding Oil (30 ml), No.8 Bond Intense Moisture Mask (100 ml), and the No.9 heat-protective leave-in serum.
The best Cyber Monday Olaplex deals are almost always the multi-product sets and the liter-size shampoos and conditioners — not the single 3.3 oz bottles — because the per-ounce price improves far more than the headline discount suggests. If you already know which bond-building step your hair needs, buy the set that contains it and skip the rest; if you don’t, buy the smallest set that covers shampoo, conditioner, and No.3 and leave the extras on the shelf.
What actually gets discounted
Olaplex’s retail line is numbered, and the numbers matter when you’re reading a deal listing. The consumer products that show up in Cyber Monday promotions are:
- No.0 Intensive Bond Building Treatment (155 ml / 5.2 fl oz) — a pre-step applied to damp hair before No.3.
- No.3 Hair Perfector (100 ml / 3.3 fl oz, plus an 8.5 oz supersize) — the at-home bond builder.
- No.4 Bond Maintenance Shampoo in 250 ml and 1 L, alongside the No.4C clarifying, No.4D volume, and No.4P blonde-enhancing toning variants.
- No.5 Bond Maintenance Conditioner in 250 ml and 1 L.
- No.6 Bond Smoother (100 ml), No.7 Bonding Oil (30 ml), No.8 Bond Intense Moisture Mask (100 ml), and the No.9 heat-protective leave-in serum.
No.1 Bond Multiplier and No.2 Bond Perfector are professional salon products. They don’t appear in consumer Cyber Monday sales, so treat any listing that bundles them as a red flag about the seller.
Discounts in this category generally land in the 20–35% range at beauty retailers, with limited-edition holiday sets cut deeper than single bottles. Brand-direct sales usually run a sitewide percentage plus a gift-with-purchase threshold rather than stacking both, so the set is often the better buy on the brand’s own site and the single liter is often better at a retailer.
Cost per ounce is what decides the deal
| Product | Typical size | Typical full price | Cost per ounce |
|---|---|---|---|
| No.3 Hair Perfector | 3.3 fl oz (100 ml) | $28–$32 | about $9.00 |
| No.3 Hair Perfector supersize | 8.5 fl oz (250 ml) | $60–$72 | $7.00–$8.50 |
| No.4 Bond Maintenance Shampoo | 8.5 fl oz (250 ml) | $28–$32 | about $3.50 |
| No.4 or No.5 liter | 33.8 fl oz (1 L) | $70–$95 | $2.10–$2.80 |
| No.5 Bond Maintenance Conditioner | 8.5 fl oz (250 ml) | $28–$32 | about $3.50 |
| No.6 Bond Smoother | 3.3 fl oz (100 ml) | $28–$32 | about $9.00 |
| No.7 Bonding Oil | 1 fl oz (30 ml) | $28–$32 | about $30.00 |
| No.8 Bond Intense Moisture Mask | 3.3 fl oz (100 ml) | $28–$32 | about $9.00 |
| No.0 Intensive Bond Building Treatment | 5.2 fl oz (155 ml) | $28–$32 | about $5.75 |
Two things stand out. The liter sizes are the only place the per-ounce cost roughly halves, so a 25% Cyber Monday cut on a liter beats a 30% cut on a 250 ml bottle. And the per-ounce figure is close to useless for No.7: at two or three drops per application, a 1 oz bottle delivers several hundred uses, or roughly ten cents per styling. For oils, serums, and No.6 (a pea-size per use), judge by cost per use, not cost per ounce.
Match the set to your hair concern
| Your situation | What to buy on Cyber Monday | What to skip |
|---|---|---|
| Bleached or heavily highlighted, snapping hair | No.0 + No.3 pair, plus the No.4/No.5 liter duo | No.4D volume shampoo |
| Fine hair that goes limp | No.4D shampoo + No.9 serum | No.6 and No.8, which are too rich |
| Thick, coarse, dry hair | No.8 mask + No.5 conditioner + No.6 | Clarifying No.4C as a daily wash |
| Curly or coily hair | No.3 + No.6 + No.7 | Volume-focused No.4D |
| Oily scalp with product buildup | No.4C (once a week) + No.3 | Weekly No.8 mask |
| Brassy blonde or gray | No.4P toning shampoo + No.3 | Extra toning treatments in the same week |
| Color-treated but healthy | No.4/No.5 liter duo + occasional No.3 | A full bond-building routine you won’t finish |
Do sets beat singles? The math
| Bundle | Buying separately | Typical set price | Cyber Monday at 25–30% off |
|---|---|---|---|
| No.4 8.5 oz + No.5 8.5 oz + No.3 3.3 oz | about $90 | $60–$72 | $42–$54 |
| No.0 + No.3 pair | about $60 | $45–$52 | $32–$39 |
| No.6 + No.7 pair | about $60 | $42–$50 | $29–$38 |
That’s a saving of roughly 40–55% against full-price singles — but only if you’d have bought every item in the box. A set that includes a shampoo you won’t use can cost more than two full-price bottles you will. Check the printed fl oz on the box before buying: some holiday sets quietly substitute a travel size for the full-size shampoo, which wipes out the per-ounce advantage.
How often to treat, and how long a bottle lasts
Bond builders are not protein treatments and they don’t need a weekly slot forever. A practical schedule for damaged hair is No.3 once a week for four to six weeks, then every two to three weeks for maintenance. Leave it on for a minimum of ten minutes; twenty to thirty minutes gives a noticeably better result, and pairing it with No.0 beforehand increases absorption.
- No.3, 3.3 oz: roughly 4–6 full-head applications on shoulder-length hair — about $5–$7 per treatment, or $22–$30 a month if used weekly.
- No.0 + No.3 together: about 5–6 combined treatments per pair of bottles, so $10–$12 each. Alternate with No.3 alone to halve the monthly cost.
- No.8 mask: 6–8 uses per 3.3 oz jar. Rotate it with No.3 rather than layering both on the same day.
- No.4 shampoo: an 8.5 oz bottle runs about 35–50 washes. No.5 conditioner runs out first — roughly 20–30 washes — because you use more per wash. That asymmetry is the real argument for buying the liter in conditioner even if you keep shampoo at 250 ml.
- No.6 and No.7: a pea-size and two to three drops respectively, so both last six months to a year.
How to sanity-check a Cyber Monday price
- Divide the sale price by the fl oz. If it doesn’t beat $3.50/oz for shampoo or $9/oz for No.3, the discount is cosmetic.
- Compare the set against the sum of its parts at current sale prices, not full retail.
- Ignore travel sizes as a way to save — they typically cost two to three times more per ounce and are only useful for testing whether a formula suits you.
- Check the after-opening symbol on the bottle (most Olaplex products carry 12 months). A liter you won’t finish inside a year is not a bargain.
FAQ
Are Cyber Monday prices lower than Black Friday?
Usually not — most retailers extend the same promotion through the weekend. What changes is stock, and the popular sets and liter sizes are the first to sell out. Buying early in the sale window matters more than waiting for Monday.
Is the No.3 supersize worth it?
Only at 20% off or more. At full price the supersize is about $7–$8.50 per ounce against $9 for the standard bottle, which is a thin margin. A 25% discount on the supersize brings it to roughly $5.50–$6.40 per ounce, which is where it becomes the better buy for long hair.
Does No.3 replace a hair mask?
No. No.3 works on broken disulfide bonds; No.8 adds moisture and slip. Dry, damaged hair usually benefits from both, alternated weekly rather than stacked.
Bottom line
Buy the set that matches your hair concern, at the largest size you’ll realistically finish within twelve months. For most people that means a No.4/No.5 liter duo plus a No.0 and No.3 pair, which together cover cleansing, conditioning, and genuine bond repair. Everything else — masks, oils, smoothers, toning shampoos — is a targeted add-on, and a Cyber Monday discount is not a reason to buy a step your hair doesn’t need.
