PURPOSE: A liquid formulation composition for light sensitive neutralization which will be used in a PDT procedure is provided to decompose or remove the remaining light sensitive material when the composition is applied to ALA composition for PDT treatment. CONSTITUTION: A liquid formulation composition for light sensitive neutralization which will be used in a PDT procedure comprises 0.1-1.0 wt% of xanthan gum, 0.1-20 wt% of glycerine, 16-99.2 wt% of purified water, 0.1-6.0 wt% of propylene glycol, 0.1-10 wt% of PEG, 0.1-20 wt% of sodium citrate, 0.1-2.0 wt% of sodium hydrogen carbonate, 0.1-5 wt% of sodium ascorbate, and 0.1-20 wt% of ethanol. The liquid formulation composition for light sensitive neutralization used in PDT procedure comprises the following steps: mixing xanthan gum with glycerine (S1)； mixing purified water to the mixture and heating to 30-45°；C (S2)； adding propylene glycol and PEG-12 to the mixture and agitating for 1hour ±；10 minutes (S3)； adding sodium citrate to the mixture and agitating for 2 hours±；20 minutes(S4)； adding sodium hydrogen carbonate and sodium ascorbate to the mixture and agitating 4 hours±；20 minutes (S5)； and adding ethanol after cooling the mixture down to room temperature (S6). [Reference numerals] (S1) Mixing xanthan gum with glycerine； (S2) Mixing purified water to the mixture and heating； (S3) Adding propylene glycol and PEG-12； (S4) Adding sodium citrate to the mixture； (S5) Adding sodium hydrogen carbonate and sodium ascorbate； (S6) Adding ethanol after cooling the mixture down to room temperature본 발명은 여드름 개선 등을 위하여 사용하는 광역학 치료용 5-아미노레불린산(ALA) 조성물의 적용시 잔존하는 광민감성 물질의 분해 또는 제거해 주는 광역학 치료법에 사용되는 5-아미노레불린산 중화용 액상제형 조성물에 관한 것이다.이러한 본 발명인 광역학 치료법에 사용되는 5-아미노레불린산 중화용 액상제형 조성물은 잔탄검 0.1~1.0 중량%, 글리세린 0.1~20.0 중량%, 정제수 16.0~99.2 중량%, 프로필렌글라이콜 0.1~6.0 중량%, 피이지-12 0.1~10.0 중량%, 소디윰시트레이트 0.1~20.0 중량%, 탄산수소나트륨 0.1~2.0 중량%, 아스코르빈산나트륨 0.1~5.0 중량%, 에탄올 0.1~20.0 중량%로 이루어진다.
