eighth-day Eighth Day Regenerative Serum

Ingredients overview

Label order. Colour is our internal rating: green routine, yellow restricted or worth a look, red prohibited or high-risk, grey not yet decoded.

Ingredients are listed in label order; the order reflects the label only, not exact concentrations.

1. Aqua/Water/Eau
2. Pentylene Glycol
3. Peptide-Rich Plasma®
4. [SH-Oligopeptide-2
5. SH-Polypeptide-1
6. SH-Polypeptide-9
7. SH-Polypeptide-11
8. Acetyl Hexapeptide-8
9. SH-Oligopeptide-1
10. Palmitoyl Tripeptide-5
11. Palmitoyl Tetrapeptide-7
12. Acetyl Glutamine
13. Sodium Hyaluronate
14. Lysine Hcl
15. Alanine
16. Histidine Hcl
17. Arginine
18. Serine
19. Proline
20. Glutamic Acid
21. Threonine
22. Valine
23. Leucine
24. Glycine
25. Isoleucine
26. Phenylalanine
27. Taurine]
28. Glycerin
29. Hedychium Coronarium Root Extract
30. Tripeptide-1
31. Polygonum Aviculare Extract
32. Honey
33. Nonapeptide-1
34. Acetyl Heptapeptide-4
35. Phytosphingosine
36. Sea Whip Extract
37. Niacinamide
38. Hydrolyzed Hyaluronic Acid
39. Aminobutyric Acid
40. Adenosine
41. Thioctic Acid
42. Glycolic Acid
43. Bacillus/Soybean/Folic Acid Ferment Extract
44. Polysorbate 20
45. Allantoin
46. Caprylyl Glycol
47. Lecithin
48. Butylene Glycol
49. 1,2-Hexanediol
50. Dextran
51. Phenoxyethanol
52. Ethylhexylglycerin
53. Xanthan Gum

Highlights

Free of alcoholFree of parabensFree of siliconesFree of sulfatesFree of mineral oilFree of formaldehyde releasersContains fragranceContains EU-26 allergensContains essential oilsContains animal-derivedContains PEG

Formulation view Aqueous base with pentylene glycol, featuring SH-series signaling peptides, palmitoyl peptides, and a spectrum of amino acids. The formula includes hyaluronates for moisture. Ideal for mature or compromised skin. Formulator note: The diverse amino acid mix creates a synergistic hydration network, enhancing texture and comfort without heavy occlusion.

Key ingredients

溶剂

Aqua/Water/Eau

SKIN CONDITIONING

Pentylene GlycolSH-Oligopeptide-1Acetyl Glutamine

HUMECTANT

Acetyl Hexapeptide-8Sodium Hyaluronate

SKIN CONDITIONING - MISCELLANEOUS

Palmitoyl Tripeptide-5Palmitoyl Tetrapeptide-7

Other ingredients

Peptide-Rich Plasma®[SH-Oligopeptide-2SH-Polypeptide-1SH-Polypeptide-9SH-Polypeptide-11Lysine HclAlanineHistidine HclArginineSerineProlineGlutamic AcidThreonineValineLeucineGlycineIsoleucinePhenylalanineTaurine]GlycerinHedychium Coronarium Root ExtractTripeptide-1Polygonum Aviculare ExtractHoneyNonapeptide-1Acetyl Heptapeptide-4PhytosphingosineSea Whip ExtractNiacinamideHydrolyzed Hyaluronic AcidAminobutyric AcidAdenosineThioctic AcidGlycolic AcidBacillus/Soybean/Folic Acid Ferment ExtractPolysorbate 20AllantoinCaprylyl GlycolLecithinButylene Glycol1,2-HexanediolDextranPhenoxyethanolEthylhexylglycerinXanthan Gum

Skim through

Ingredients explained

Aqua/Water/Eau

Water as solvent/base; main ingredient, microbial control needed, paired with preservatives.

Pentylene Glycol

Polyol humectant at 1-3%; low irritancy, suitable for sensitive skin

Peptide-Rich Plasma®

Not decoded yet

[SH-Oligopeptide-2

Not decoded yet

SH-Polypeptide-1

Not decoded yet

SH-Polypeptide-9

Not decoded yet

SH-Polypeptide-11

Not decoded yet

Acetyl Hexapeptide-8

Acetyl hexapeptide-8; signal peptide, low concentration, used for firming and hydration, low irritancy.

SH-Oligopeptide-1

Synthetic short oligopeptide for skin conditioning; generally low irritancy and comedogenicity

Palmitoyl Tripeptide-5

Peptide actives for skin conditioning; typically used at low levels.

Palmitoyl Tetrapeptide-7

Palmitoyl Tetrapeptide-7 boosts collagen; use 0.1–1%, formulate with lipid carriers

Acetyl Glutamine

Acetylated glutamine; barrier repair and soothing, suitable for acute or sensitive skin

Sodium Hyaluronate

Potent humectant at 0.1–2%; different MW for penetration depth, high levels may draw moisture

Lysine Hcl

Lysine HCl, amino acid for hair and skin conditioning, reduces protein loss

Alanine

Amino acid for antistatic and conditioning; low irritation, slight salty taste at high levels

Histidine Hcl

Amino acid salt for pH buffering and hair conditioning; gentle buffering system, potential sensitization at high concentrations.

Arginine

Arginine for moisturizing/conditioning; amino acid, high biocompatibility, often used in blends.

Serine

Humectant amino acid, 1–3%; high water solubility, compatible with sensitive skin.

Proline

Proline, amino-acid humectant; boosts stratum corneum hydration, stable at pH 4-5.

Glutamic Acid

Glutamic acid, non-essential amino acid humectant; high levels can be astringent, buffer needed.

Threonine

Threonine, essential amino acid for hair/skin; blended with other AAs for balance.

Valine

Amino acid humectant, common in amino acid cleansers and sprays; mild, suitable for all skin types

Leucine

Amino acid for antistatic and skin/hair conditioning; used at low concentrations.

Glycine

Humectant amino acid, 1–3%; small molecule, low irritation.

Isoleucine

Amino acid for hair and skin conditioning and antistatic purposes; often blended; check taste if high.

Phenylalanine

Amino acid for hair and skin conditioning; usually part of a blend, no significant standalone efficacy data

Taurine]

Not decoded yet

Glycerin

Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives

Hedychium Coronarium Root Extract

Jasmine root extract; used for fragrance and soothing; essential oil components, monitor allergens

Tripeptide-1

Not decoded yet

Polygonum Aviculare Extract

Botanical extract used as an emollient. No public irritancy or comedogenic data; monitor for botanical variability.

Honey

Humectant/emollient; contains sugars requiring preservation, contraindicated for bee product allergies.

Nonapeptide-1

Nonapeptide-1 for hair/skin conditioning; enhances shine and strength, low irritation.

Acetyl Heptapeptide-4

Not decoded yet

Phytosphingosine

Phytosphingosine barrier repair ingredient, 0.1–1%; water-soluble, good for dry skin.

Sea Whip Extract

Coral extract for skin conditioning; low usage, check source stability

Niacinamide

Niacinamide at 2–5%; improves texture, controls oil, brightens; high levels may cause sensitivity

Hydrolyzed Hyaluronic Acid

Low-MW humectant with superior penetration vs high-MW; 0.1-0.5% typical, hygroscopic, store dry to prevent clumping.

Aminobutyric Acid

GABA for hair hydration and shine, low irritation, acts as a conditioner.

Adenosine

Skin conditioner at 0.1-1%; used for anti-aging and repair

Thioctic Acid

Alpha-lipoic acid; potent antioxidant; poor water solubility, often used as ester derivatives

Glycolic Acid

Glycolic acid for exfoliation; requires buffering at concentrations >10%, avoid combination with other acids.

Bacillus/Soybean/Folic Acid Ferment Extract

Not decoded yet

Polysorbate 20

Non-ionic emulsifier and cleansing surfactant; contains PEG, control microbial load.

Allantoin

Skin soother at 0.5-2%; promotes cell regeneration

Caprylyl Glycol

Polyol conditioner and preservative booster at 0.5–3%; emollient feel, often paired with 1,2-hexanediol

Lecithin

Phospholipid emulsifier at 1-5%; biocompatible, moisturizing/antioxidant, prone to oxidation (add TBHQ), mild for sensitive skin.

Butylene Glycol

Polyol humectant and solvent at 1–5%; aids solubilization, light feel

1,2-Hexanediol

Polyol solvent and preservative booster at 1–5%; light feel, can replace some traditional preservatives

Dextran

Polysaccharide for binding; water-soluble requires preservation.

Phenoxyethanol

Broad-spectrum preservative at ≤1%; may irritate sensitive eye areas, often paired with ethylhexylglycerin

Ethylhexylglycerin

Mild conditioner and preservative booster at 0.5–1%; reduces preservative load, smooth feel

Xanthan Gum

Natural thickener at 0.1–1%; provides gel texture, pH-stable, requires full hydration

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