Tsujimoto Market: Our Guarantees
Description
La Sincia SE-100 — Intensive Collagen Serum, 30 ml
La Sincia SE-100 is a concentrated collagen serum from La Sincere, a Japanese professional skincare brand with deep roots in aesthetic clinic care. SE-100 stands out for its dual-collagen approach: it combines low-molecular weight hydrolysed collagen (small enough to penetrate beyond the skin's surface) with succinyl atelocollagen — a highly purified, biocompatible form of collagen with excellent affinity for human skin tissue.
Together, these two forms of collagen work to strengthen the skin's structural matrix, visibly plumping fine lines and restoring the skin's firm, bouncy appearance. The serum texture is lightweight enough to absorb quickly, making it suitable for use under moisturiser or as a targeted treatment for areas showing early signs of collagen loss.
See also: Japanese Serum | Japanese Anti-Aging Skincare | Japanese Collagen Supplements
Key Benefits
- ✓ Low-molecular hydrolysed collagen — fine enough to penetrate beyond the stratum corneum for deeper skin hydration
- ✓ Succinyl atelocollagen — highly biocompatible collagen with exceptional skin affinity
- ✓ Visibly plumps fine lines and restores skin firmness with consistent use
- ✓ Lightweight serum texture — absorbs quickly with no heaviness or residue
- ✓ Professional aesthetic clinic grade formula from La Sincere Japan
- ✓ Authentic Japanese product — ships directly from Kobe, Japan
How to Use
- After cleansing and toning, take 2–3 drops of SE-100 onto clean fingertips.
- Gently press and pat into skin — face, neck, and any areas showing fine lines.
- Allow to absorb for 60 seconds before applying moisturiser.
- Can be layered under your regular La Sincere cream or any moisturiser.
Frequency: Morning and evening.
Tip: For targeted use on décolletage or neck lines, apply a slightly larger amount and pat gently with three fingers until fully absorbed.
Ingredients
Water, BG, Glycerin, Hydrolysed Collagen (low-molecular), Succinyl Atelocollagen, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Sodium Citrate, Citric Acid, Phenoxyethanol, Ethylhexylglycerin.
Note: Please verify against the physical product label. Collagen is animal-derived (bovine or marine source — see label for origin).
Cautions
- For external use only. Avoid contact with eyes.
- Collagen is animal-derived — this product is not suitable for strict vegans.
- If you have fish or shellfish allergies, check whether the collagen source is marine-derived.
- Perform a patch test before first full-face use if you have sensitive skin.
- Discontinue use if redness, itching, or irritation develops.
- Keep out of reach of children. Store in a cool, dry place away from direct sunlight.
Package Contents
- 1 × La Sincia SE-100 Collagen Serum — 30 ml
Shipping & Store Notes
- Ships directly from Japan (Kobe)
- Processing time: 2–6 business days
- Tracking number provided after dispatch
- Import duties and taxes may apply depending on your destination country
- Opened cosmetics and supplements cannot be returned for hygiene and safety reasons
Authenticity Guarantee
Every product at Tsujimoto Market is sourced directly from Japan and verified for authenticity. We never sell fakes or grey-market goods. Each order is carefully packed and dispatched with full tracking.
FAQ
Does topical collagen actually reach the skin's dermal layer?
Full-size collagen molecules are too large to penetrate the skin. However, low-molecular hydrolysed collagen (as used in SE-100) is broken down into smaller peptide chains that can penetrate deeper than intact collagen and serve as signalling molecules that stimulate the skin's own collagen production. Succinyl atelocollagen has additional affinity for skin tissue, making it more effective as a topical ingredient than conventional collagen.
Is the collagen in this product animal-derived?
Yes — SE-100 uses animal-derived collagen (bovine or marine source). It is not vegan. If you have concerns about the source or allergies (especially fish/shellfish if marine-derived), please check the label before use.
Can I combine this serum with vitamin C or retinol?
Yes — hydrolysed collagen and succinyl atelocollagen are compatible with both vitamin C (which also supports natural collagen synthesis) and retinol (which stimulates cell renewal). Apply SE-100 first as a base layer, followed by your vitamin C serum, then moisturiser.
Is this the genuine Japanese product?
Yes — Tsujimoto Market sources La Sincere products directly from Japanese suppliers and ships from our warehouse in Kobe, Japan.
How long does delivery take?
Orders dispatch within 2–6 business days. Delivery is typically 7–20 days depending on your country. A tracking number is provided after dispatch.

