Second Skin Draft

Formula · 20 ingredients · Musk — Skin musk

RUŌOD House OriginalRUŌOD House OriginalsRegulatory assessment pending

In short

A close, soft, slightly warm musk that smells like the wearer's own skin, only better.

Concept

The smell of clean skin under a cotton shirt, and nothing more. Eight musks layered for different jobs — metallic, fruity, powdery, warm — with a glint of ambrette and pear skin, a little iris, and a breath of aldehyde for freshly washed cotton.

  • Family. Musk — Skin musk
  • Main accords. Layered musks, Pear-skin ambrette, Soft iris, Clean aldehyde
  • Intended for. Gender-neutral, Office, Everyday, Young adult
  • Season and occasion. All year
  • Collection. RUŌOD House Originals

How it develops

  • Opening. Bergamot, a clean undecylenic aldehyde and a pear-skin glint.
  • Heart. Hedione and cyclohexyl salicylate with ambrette seed and a whisper of iris.
  • Base. Habanolide, Helvetolide, ambrettolide, Exaltolide, Muscenone, Galaxolide, ethylene brassylate and Romandolide.

Ingredients

Quantities are parts by weight of a 1,000-part fragrance concentrate — the weight put on the balance. Where a dilution is given, the line is weighed as that solution in dipropylene glycol, and its share is of the weighed amount.

Ingredients of Second Skin Draft, parts per 1,000
MaterialQuantityDilutionShare
Ethylene Brassylate 120.00 — 12.00%
Habanolide 120.00 — 12.00%
Hedione 120.00 — 12.00%
Galaxolide 100.00 — 10.00%
Helvetolide 80.00 — 8.00%
Ambrettolide 60.00 — 6.00%
Exaltolide 60.00 — 6.00%
Cashmeran 50.00 — 5.00%
Bergamot Oil FCF 40.00 — 4.00%
Cyclohexyl Salicylate 40.00 — 4.00%
Romandolide 40.00 — 4.00%
Sandalore 40.00 — 4.00%
Muscenone 30.00 — 3.00%
alpha-Isomethyl Ionone 20.00 — 2.00%
Ambrette Seed OilAs written: Ambrette Seed Oil 10% DPG 20.00 10% in DPG 2.00%
Linalool 15.00 — 1.50%
Aldehyde C-11 Undecylenic (10-Undecenal)As written: Aldehyde C-11 Undecylenic (10-Undecenal) 10% DPG 15.00 10% in DPG 1.50%
Ambroxan 10.00 — 1.00%
alpha-Irone 10.00 — 1.00%
Ethyl Decadienoate (Pear Ester)As written: Ethyl Decadienoate (Pear Ester) 10% DPG 10.00 10% in DPG 1.00%
Total1000.00 parts100.00%

Every material links to its page in the Material Encyclopedia.

Composition notes

  • Key materials. Habanolide, Hedione, Ethylene Brassylate, Galaxolide, Helvetolide
  • What makes it distinctive. A study in musk texture rather than one musk with a floral, with ambrette seed oil giving a natural, skin-like warmth.
  • Character. For daily wear, layering and anyone who wants a scent that does not announce itself.
  • Concentration. 10–15%

Safety and compliance

  • Status. Regulatory assessment pending. No formula-level safety assessment is documented yet, so this page does not say the formula is compliant for any use.
  • IFRA Standards. The IFRA Standards Library covers 5 of its materials: Exaltolide (Restriction: Cyclopentadecanolide, Amendment 49); Cashmeran (Restriction: 6,7-Dihydro-1,1,2,3,3-pentamethyl-4(5H)-indanone (DPMI), Amendment 49); Sandalore (Restriction: 5-(2,2,3-Trimethyl-3-cyclopentenyl)-3-methylpentan-2-ol, Amendment 49); alpha-Isomethyl Ionone (Methyl ionone, mixed isomers, Amendment 49); Linalool (Specification: Linalool, Amendment 38).
  • Skin sensitisation. EU-labelled fragrance allergens present as ingredients: Linalool, alpha-Isomethyl ionone. Natural materials carry further allergens as constituents, declared from the supplier’s data, and Regulation (EU) 2023/1545 extends the list to be labelled on products placed on the EU market from 31 July 2026.
  • Product category. Limits depend on the product: fine fragrance, leave-on and rinse-off products have different IFRA categories, and each Standard sets its own figure for each.

Source and attribution

RUŌOD House Original — an original composition by RUŌOD House. Published as the house’s own work, as attested by the owner of RUOOD Lab on 26 October 2026. The name is the collection’s own and has not been through a trademark search; it needs a formal clearance before any commercial use.

Reuse. Under the permission it is published with, you may read it here, study it, modify it for your own experiments, import it into RUŌOD Lab. Conditions: Keep the attribution “RUŌOD House”. Regulatory assessment pending: check each formula against the current IFRA Standards and the rules for the product and market before use on skin or in a product. Anything else needs the rights holder's own permission.

Import readiness

Every ingredient resolves to a material in the RUŌOD Material Library, with its dilution as printed or as supplied, so this formula can be imported faithfully.

Rights holders: if you believe this page uses something you own, or that it is inaccurate, contact us (info@ruood.com) and we will review it, and correct or remove it where that is warranted.

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