1. How we calculate product combinations

Every product on The Universal Hair is defined by several independent dropdown options on the product page: for example, size, skin tone, colour, texture, look, and hair origin.

For each option, the customer chooses one value from the dropdown. If a product has:

• a choices for Option 1
• b choices for Option 2
• c choices for Option 3

then the total number of possible configurations for that product is:

then the total number of possible configurations for that product is:

In our case, many products share this common structure:

• Size: 11 options (10", 12", 14", 16", 18", 20", 22", 24", 26", 28", 30")
• Skin tone: 7 options
• Colour: 24 options
• Texture: 22 options
• Look: 3 options (Natural, Wet, Glossy)
• Other hair type (origin): 8 options

So the core combination block is: 11×7×24×22×3×8=975,744

That means:
For any product with these six dropdowns, a customer can create 975,744 unique combinations of length, skin tone, colour, texture, finish and hair origin.

2. Combination counts per product type

In all sections below, “per product” means one base product (for example, one specific Remy Bulk model). You typically have 10 Remy + 10 Premium products (20 total) in each main category.

2.1 Bulk (Remy & Premium)

Options per Bulk product (Remy and Premium are the same):

• Size – 11 choices
• Skin tone – 7 choices
• Colour – 24 choices
• Texture – 22 choices
• Look – 3 choices
• Other hair type – 8 choices

Per‑product combinations

Each Remy Bulk product: 975,744 combinations.
Each Premium Bulk product: 975,744 combinations.

You have 10 Remy Bulk + 10 Premium Bulk products:

Bulk total: 19,514,880 combinations

2.2 Machine Weft (Remy & Premium)

Extra dropdown: Type of Weft.

Options per Machine Weft product

• Type of Weft – 5 choices
  (Double Weft, Single Weft, Flat Weft, Seamless Glue Weft, Genius Weft)
• Plus all 6 core options (Size, Skin tone, Colour, Texture, Look, Hair origin)

Per‑product combinations

Start from the core block 975,744 and multiply by 5:

Each Remy Machine Weft product: 4,878,720 combinations.
Each Premium Machine Weft product: 4,878,720 combinations.

You have 10 Remy + 10 Premium Machine Weft products:

Machine Weft total: 97,574,400 combinations

2.3 Hand Weft (Remy & Premium)

Same option structure as Bulk.

Options per Hand Weft product

• Size – 11
• Skin tone – 7
• Colour – 24
• Texture – 22
• Look – 3
• Other hair type – 8

Per‑product combinations

Each Remy Hand Weft product: 975,744 combinations.
Each Premium Hand Weft product: 975,744 combinations.

You have 10 Remy + 10 Premium Hand Weft products:

Hand Weft total: 19,514,880 combinations

2.4 Clip‑In Extensions (Remy & Premium)

Extra dropdown: Invisible Weft / Fabric‑Weft / Halo / Weft Clip‑In.

Options per Clip‑In product

• Clip‑In type – 4 choices
  (Halo, Invisible Clip‑In Weft, Fabric‑Weft Clip‑In, Weft Clip‑In)
• Plus all 6 core options

Per‑product combinations

Each Clip‑In product: 3,902,976 combinations.

10 Remy + 10 Premium Clip‑In products:

Clip‑In total: 78,059,520 combinations

2.5 Pre‑Tip Extensions (Remy & Premium)

Options per Pre‑Tip product

• Ring type – 3 choices (Micro, Nano, Loop)
• Keratin tip shape – 4 choices (I, U, V, Flat)
• Strand weight – 4 choices (1 g, 0.8 g, 0.6 g, 0.5 g)
• Plus all 6 core options

First group the three special options:

Per‑product combinations

Each Pre‑Tip product: 46,835,712 combinations.

10 Remy + 10 Premium Pre‑Tip products:

Pre‑Tip total: 936,714,240 combinations

2.6 Tape‑In / Skin Weft (Remy & Premium)

Extra dropdown: Tape‑In / Invisible Skin Weft.

Options per Tape‑In product

• Extension type – 2 choices (Tape‑In / Invisible Skin Weft)
• Plus all 6 core options

Per‑product combinations

Each Tape‑In product: 1,951,488 combinations.

10 Remy + 10 Premium Tape‑In products:

Tape‑In total: 39,029,760 combinations

2.7 Closures (Remy & Premium)

Extra dropdown: Closure Size, Part & Lace.

Options per Closure product

• Closure Size, Part & Lace – 10 choices
• Plus all 6 core options

Per‑product combinations

Each Closure product: 9,757,440 combinations.

10 Remy + 10 Premium Closures:

Closure total: 195,148,800 combinations

2.8 Frontals (Remy & Premium)

Same structure as Closures, but for Frontals.

Options per Frontal product

• Frontal Size, Part & Lace – 10 choices
• Plus all 6 core options

Per‑product combinations

Each Frontal product: 9,757,440 combinations.

10 Remy + 10 Premium Frontals:

Frontal total: 195,148,800 combinations

2.9 Toppers (Remy & Premium)

Extra dropdown: Toppers Size: Part & Lace.

Options per Toppers product

• Toppers Size, Part & Lace – 8 choices
• Plus all 6 core options

Per‑product combinations

Each Toppers product: 7,805,952 combinations.

10 Remy + 10 Premium Toppers:

Toppers total: 156,119,040 combinations

2.10 Wigs (Remy & Premium)

Very high customisation.

Options per Wig product

• Type of Wig – 6 choices
• Wig Fit (head circumference, parting & density) – 11 combined choices
• Skin tone – 7
• Size – 11
• Colour – 24
• Texture – 22
• Look – 3
• Other hair type – 8

Per‑product combinations

Each Wig product: 65,069,184 combinations.

10 Remy + 10 Premium Wigs:

Wig total: 1,301,383,680 combinations

2.11 Ponytails (Remy & Premium)

Same 6 core options as Bulk / Hand Weft but listed in different order.

Per‑product combinations

Each Ponytail product: 975,744 combinations.

10 Remy + 10 Premium Ponytails:

Ponytail total: 19,514,880 combinations

2.12 Hair Patches (Women & Men)

Women’s Hair Patches (Remy & Premium)

Options per Women Patch product

• Women’s Hair Patch Size – 3 choices (6×8, 7×9, 8×10)
• Plus all 6 core options

Each women patch product: 2,927,232 combinations.

10 Remy + 10 Premium Women Patches:

Men’s Hair Patches

Options per Men Patch product

• Men’s Hair Patch Size – 5 choices
• Skin tone – 7
• Colour – 24
• Texture – 22
• Look – 3
• Other hair type – 8

First compute the block without patch size:

Then:

Each men patch product: 443,520 combinations.

(Total for Men Patches depends on how many separate men’s patch products you finally create.)

2.13 Hair Streaks (Remy & Premium)

Same core 6 options.

If you have 10 Remy + 10 Premium Streaks:

Streaks total: 19,514,880 combinations

2.14 Hair Bangs / Fringes (Remy & Premium)

Most complex structure.

Options per Bangs product

• Bang type – 13 choices
• Bang density – 7 choices
• Forecenter length – 15 choices
• Side‑blend length – 15 choices
• Forehead width – 5 choices
• Skin tone – 7
• Colour – 24
• Texture – 22
• Look – 3
• Other hair type – 8

Per‑product combinations

The exact number is extremely large (in the tens of billions of combinations per bangs product), so for customers it is reasonable to state that there are “billions of possible fringe configurations” per product.

2.15 Full Coverage Hair Toupee

Options per Toupee product

• Density – 3 choices
• Toupee circumference – 3 choices
• Skin tone – 7
• Colour – 24
• Texture – 22
• Look – 3
• Other hair type – 8

Combine the two toupee‑specific options:

Block for the shared options (no size):

Per‑product combinations

Each Toupee product: 798,336 combinations.

3. Grand total combinations (across all products)

If we add the clearly defined categories using your “10 Remy + 10 Premium” structure (Bulk, Machine Weft, Hand Weft, Clip‑Ins, Pre‑Tips, Tape‑In, Closures, Frontals, Toppers, Wigs, Ponytails, Women Patches, Streaks) and use reasonable counts for Men Patches, Bangs and Toupees, your total number of possible configurations is firmly in the multi‑billion range.

Even without counting every single variation of Hair Bangs and Men’s Patches in full, you are already comfortably above:

2,000,000,000 (2 billion) unique product combinations across all products on The Universal Hair.