Caratfill DEEP is the mid-tier member of the Caratfill line, a cross-linked sodium-hyaluronate dermal filler at 24 mg/ml with 0.3% lidocaine in a 1.1 ml syringe. The manufacturer positions it for moderate volume, sitting between the soft KISS and the structural SUB-Q. It is placed by a trained professional, and the guide is below.

What is Caratfill DEEP, and where does it sit?

DEEP is the middle texture in a three-variant family. All three share the same 24 mg/ml HA, the same 0.3% lidocaine, and the same 1.1 ml syringe. What changes across the line is gel firmness and the general depth each is aimed at. DEEP is positioned for moderate volume, firmer than the softest option but less structural than the firmest.

Hyaluronic acid is a sugar your body already makes. As a cross-linked filler, it adds volume by binding water under the skin, then the body gradually breaks it down over months, so the result is temporary. For lighter, more superficial work the line offers Caratfill KISS; for the firmest, most structural support it offers Caratfill SUB-Q. DEEP is the option positioned in between.

Log Notes. This compares DEEP within its line at a high level. It gives no needle sizes, depths, injection points, per-area amounts, or technique, all of which live in the official guide and belong to a trained professional. Nothing here is medical advice, and this is not a do-it-yourself procedure.

How does the cross-linking and NSE technology work?

Through HA chemistry plus the manufacturer’s processing. Cross-linking binds HA chains so the gel lasts longer than loose HA. The cross-linking agent is BDDE, and lower residual BDDE is generally associated with a cleaner profile, as the FDA’s dermal filler overview explains for HA products as a class.

Caratfill’s patented NSE (Naturally Safe Effective) technology is the line’s headline claim. The manufacturer states it minimizes chemical deformation, preserves long-chain HA for longevity, and keeps BDDE residue very low (manufacturer states under 0.2 ppm, with endotoxin under 0.03 EU/mg). They cite a 48-week double-blind nasolabial-fold study referenced against Restylane. Treat these as manufacturer and study claims, not guarantees for you.

What should you expect, and what’s worth tracking?

A moderate, water-binding result that fades over months, so a dated record matters. Since HA fillers are temporary, the useful question is how long your DEEP result lasts before review or top-up. Photograph consistently and note how the treated area changes across weeks rather than relying on memory.

In Dosefi you can add Caratfill DEEP as a treatment, log each session date with a photo, set a reminder for the review or top-up window, and self-rate how long the result holds. Crucially, note which variant was used, KISS, DEEP, or SUB-Q, so if a clinic switches you between them you can compare honestly. For a different HA approach, see our notes on Profhilo.

A grounded takeaway

Caratfill DEEP is the mid-tier HA filler in the line, positioned for moderate volume and built on the brand’s low-BDDE NSE technology. Expect a temporary, water-binding result, keep a dated record, and leave candidacy, variant choice, and the procedure to a licensed professional. The official guide is attached for your own reference.

Sources